deauthenticating by local choice (Reason: 3=DEAUTH_LEAVING)

[mbr-chess]

Buona giornata a tutti.

Chiedo assistenza per un problema "ben noto" (in quanto nel web ho trovato tantissime ricorrenze) ma dal quale non riesco ad uscirne.

Da una quindicina di giorni mi si sconnette continuamente la connessione WiFi e con dmesg appare questo errore:
wlxec086b0ac929: deauthenticating from ... by local choice (Reason: 3=DEAUTH_LEAVING)

Ho trovato molte "risoluzioni" ma sono o datate o non funzionanti.

Ho provato anche una live di altra distribuzione (Mint 18 Cinnamon) che non ha evidenziato l'anomalia.

il mio sistema è Ubuntu 16.04.2 perfettamente aggiornato e la chiavetta USB è una TP-Link TL-WN821N ver 4.2 (della quale non ho capito se ha il chip RTL8111/8168/8411 oppure il RTL8192cu).

Ringrazio in anticipo chi potrà aiutarmi.

Ciao a tutti.
mbr-chess

[thece]

intanto postami questi output così ti dico che scheda di rete hai

Codice: Seleziona tutto

sudo lshw -c network

Codice: Seleziona tutto

lspci -knn | grep -A 2 -i net

Codice: Seleziona tutto

lsusb

Codice: Seleziona tutto

ifconfig

[mbr-chess]

Ecco gli output:

Codice: Seleziona tutto

  *-network
       description: Ethernet interface
       product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:02:00.0
       logical name: enp2s0
       version: 06
       serial: 74:d4:35:9b:0f:5b
       size: 100Mbit/s
       capacity: 1Gbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=r8168 driverversion=8.041.00-NAPI duplex=half latency=0 link=no multicast=yes port=twisted pair speed=100Mbit/s
       resources: irq:37 ioport:d000(size=256) memory:fe900000-fe900fff memory:d0000000-d0003fff
  *-network:0
       description: Ethernet interface
       physical id: 1
       logical name: enx00e01b6ff6f0
       serial: 00:e0:1b:6f:f6:f0
       size: 10Mbit/s
       capacity: 1Gbit/s
       capabilities: ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=r8152 driverversion=v1.08.2 duplex=half link=no multicast=yes port=MII speed=10Mbit/s
  *-network:1
       description: Wireless interface
       physical id: 2
       bus info: usb@2:1
       logical name: wlxec086b0ac929
       serial: ec:08:6b:0a:c9:29
       capabilities: ethernet physical wireless
       configuration: broadcast=yes driver=rtl8192cu driverversion=4.4.0-62-generic firmware=N/A ip=192.168.1.66 link=yes multicast=yes wireless=IEEE 802.11bgn

Codice: Seleziona tutto

02:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 06)
	Subsystem: Gigabyte Technology Co., Ltd Motherboard [1458:e000]
	Kernel driver in use: r8168

Codice: Seleziona tutto

Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 002: ID 0bda:8178 Realtek Semiconductor Corp. RTL8192CU 802.11n WLAN Adapter
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 002: ID 1241:1111 Belkin Mouse
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 009 Device 006: ID 0bda:8153 Realtek Semiconductor Corp. 
Bus 009 Device 005: ID 0bda:0401 Realtek Semiconductor Corp. 
Bus 009 Device 004: ID 0781:5580 SanDisk Corp. SDCZ80 Flash Drive
Bus 009 Device 003: ID 0bda:0401 Realtek Semiconductor Corp. 
Bus 009 Device 002: ID 05dc:a838 Lexar Media, Inc. 
Bus 009 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 008 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 007 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 006 Device 004: ID 0bda:5401 Realtek Semiconductor Corp. RTL 8153 USB 3.0 hub with gigabit ethernet
Bus 006 Device 003: ID 0781:5406 SanDisk Corp. Cruzer Micro U3
Bus 006 Device 002: ID 0bda:5401 Realtek Semiconductor Corp. RTL 8153 USB 3.0 hub with gigabit ethernet
Bus 006 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

Codice: Seleziona tutto

enp2s0    Link encap:Ethernet  IndirizzoHW 74:d4:35:9b:0f:5b  
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisioni:0 txqueuelen:1000 
          Byte RX:0 (0.0 B)  Byte TX:0 (0.0 B)
          Interrupt:37 Indirizzo base:0xa000 

enx00e01b6ff6f0 Link encap:Ethernet  IndirizzoHW 00:e0:1b:6f:f6:f0  
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisioni:0 txqueuelen:1000 
          Byte RX:0 (0.0 B)  Byte TX:0 (0.0 B)

lo        Link encap:Loopback locale  
          indirizzo inet:127.0.0.1  Maschera:255.0.0.0
          indirizzo inet6: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:2730 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2730 errors:0 dropped:0 overruns:0 carrier:0
          collisioni:0 txqueuelen:1 
          Byte RX:250283 (250.2 KB)  Byte TX:250283 (250.2 KB)

wlxec086b0ac929 Link encap:Ethernet  IndirizzoHW ec:08:6b:0a:c9:29  
          indirizzo inet:192.168.1.66  Bcast:192.168.1.255  Maschera:255.255.255.0
          indirizzo inet6: fe80::ee08:6bff:fe0a:c929/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:14320 errors:0 dropped:0 overruns:0 frame:0
          TX packets:10986 errors:0 dropped:0 overruns:0 carrier:0
          collisioni:0 txqueuelen:1000 
          Byte RX:15689082 (15.6 MB)  Byte TX:1541386 (1.5 MB)

Ti ringrazio per la consueta disponibilità.

Ciao

mbr-chess

[thece]

La tua chiavetta TP-Link TL-WN821N v4 monta il chipset Realtek RTL8192CU.

Prova a vedere se la situazione migliora disabilitando il protocollo di rete IPv6.
Con un editor di testi in modalità amministratore apri il file /etc/sysctl.conf

Codice: Seleziona tutto

sudo TUO_EDITOR /etc/sysctl.conf

e in fondo ad esso aggiungi le seguenti righe

Codice: Seleziona tutto

# Disabilito IPv6 globalmente
net.ipv6.conf.all.disable_ipv6=1

salva il file e riavvia il PC.

[mbr-chess]

thece,

fatto.

Adesso devo aspettare un poco e vedere se si disconnette.

Grazie

mbr-chess

[mbr-chess]

thece,

purtroppo non ha funzionato, si è disconnesso ancora.

Ho fatto girare lo script da te consigliato (wireless-info) e questo è l'output:

Codice: Seleziona tutto

########## wireless info START ##########

Report from: 17 Mar 2017 22:56 CET +0100

Booted last: 17 Mar 2017 00:00 CET +0100

Script from: 08 Jul 2016 02:16 UTC +0000

##### release ###########################

Distributor ID:	Ubuntu
Description:	Ubuntu 16.04.2 LTS
Release:	16.04
Codename:	xenial

##### kernel ############################

Linux 4.4.0-62-generic #83-Ubuntu SMP Wed Jan 18 14:10:15 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux

Parameters: ro, quiet, splash, vt.handoff=7

##### desktop ###########################

Ubuntu

##### lspci #############################

02:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 06)
	Subsystem: Gigabyte Technology Co., Ltd Motherboard [1458:e000]
	Kernel driver in use: r8168

##### lsusb #############################

Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 002: ID 0bda:8178 Realtek Semiconductor Corp. RTL8192CU 802.11n WLAN Adapter
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 002: ID 1241:1111 Belkin Mouse
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 009 Device 006: ID 0bda:8153 Realtek Semiconductor Corp. 
Bus 009 Device 005: ID 0bda:0401 Realtek Semiconductor Corp. 
Bus 009 Device 004: ID 0781:5580 SanDisk Corp. SDCZ80 Flash Drive
Bus 009 Device 003: ID 0bda:0401 Realtek Semiconductor Corp. 
Bus 009 Device 002: ID 05dc:a838 Lexar Media, Inc. 
Bus 009 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 008 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 007 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 006 Device 004: ID 0bda:5401 Realtek Semiconductor Corp. RTL 8153 USB 3.0 hub with gigabit ethernet
Bus 006 Device 003: ID 0781:5406 SanDisk Corp. Cruzer Micro U3
Bus 006 Device 002: ID 0bda:5401 Realtek Semiconductor Corp. RTL 8153 USB 3.0 hub with gigabit ethernet
Bus 006 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

##### PCMCIA card info ##################

##### rfkill ############################

0: phy0: Wireless LAN
	Soft blocked: no
	Hard blocked: no

##### lsmod #############################

rtl8xxxu               73728  0
rtl8192cu              69632  0
rtl_usb                20480  1 rtl8192cu
rtl8192c_common        53248  1 rtl8192cu
rtlwifi                77824  3 rtl_usb,rtl8192c_common,rtl8192cu
mac80211              737280  4 rtl8xxxu,rtl_usb,rtlwifi,rtl8192cu
cfg80211              565248  2 mac80211,rtlwifi

##### interfaces ########################

auto lo
iface lo inet loopback

##### ifconfig ##########################

enp2s0    Link encap:Ethernet  HWaddr <MAC 'enp2s0' [IF1]>  
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
          Interrupt:37 Base address:0xa000 

enx<IF from MAC [IF2]> Link encap:Ethernet  HWaddr <MAC 'enx<IF from MAC [IF2]>' [IF2]>  
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

wlx<IF from MAC [IF3]> Link encap:Ethernet  HWaddr <MAC 'wlx<IF from MAC [IF3]>' [IF3]>  
          inet addr:192.168.1.66  Bcast:192.168.1.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:7519 errors:0 dropped:0 overruns:0 frame:0
          TX packets:8291 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:3741750 (3.7 MB)  TX bytes:1473649 (1.4 MB)

##### iwconfig ##########################

enp2s0    no wireless extensions.

lo        no wireless extensions.

enx<IF from MAC [IF2]>  no wireless extensions.

wlx<IF from MAC [IF3]>  IEEE 802.11bgn  ESSID:"FW-190-A4-T"  
          Mode:Managed  Frequency:2.452 GHz  Access Point: <MAC 'FW-190-A4-T' [AC1]>   
          Bit Rate=65 Mb/s   Tx-Power=20 dBm   
          Retry short limit:7   RTS thr=2347 B   Fragment thr:off
          Power Management:off
          Link Quality=48/70  Signal level=-62 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:23   Missed beacon:0

##### route #############################

Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         192.168.1.254   0.0.0.0         UG    600    0        0 wlx<IF from MAC [IF3]>
169.254.0.0     0.0.0.0         255.255.0.0     U     1000   0        0 wlx<IF from MAC [IF3]>
192.168.1.0     0.0.0.0         255.255.255.0   U     600    0        0 wlx<IF from MAC [IF3]>

##### resolv.conf #######################

nameserver 127.0.1.1

##### network managers ##################

Installed:

	NetworkManager

Running:

root      1201     1  0 22:41 ?        00:00:00 /usr/sbin/NetworkManager --no-daemon

##### NetworkManager info ###############

GENERAL.DEVICE:                         wlx<IF from MAC [IF3]>
GENERAL.TYPE:                           wifi
GENERAL.NM-TYPE:                        NMDeviceWifi
GENERAL.VENDOR:                         802.11n
GENERAL.PRODUCT:                        USB WLAN
GENERAL.DRIVER:                         rtl8192cu
GENERAL.DRIVER-VERSION:                 4.4.0-62-generic
GENERAL.FIRMWARE-VERSION:               N/A
GENERAL.HWADDR:                         <MAC 'wlx<IF from MAC [IF3]>' [IF3]>
GENERAL.MTU:                            0
GENERAL.STATE:                          100 (connected)
GENERAL.REASON:                         0 (No reason given)
GENERAL.UDI:                            /sys/devices/pci0000:00/0000:00:13.2/usb2/2-1/2-1:1.0/net/wlx<IF from MAC [IF3]>
GENERAL.IP-IFACE:                       wlx<IF from MAC [IF3]>
GENERAL.IS-SOFTWARE:                    no
GENERAL.NM-MANAGED:                     yes
GENERAL.AUTOCONNECT:                    yes
GENERAL.FIRMWARE-MISSING:               no
GENERAL.NM-PLUGIN-MISSING:              no
GENERAL.PHYS-PORT-ID:                   --
GENERAL.CONNECTION:                     FW-190-A4-T
GENERAL.CON-UUID:                       ca53c00b-da44-4a82-9736-ae6b8c6eaf42
GENERAL.CON-PATH:                       /org/freedesktop/NetworkManager/ActiveConnection/1
GENERAL.METERED:                        no (guessed)
CAPABILITIES.CARRIER-DETECT:            no
CAPABILITIES.SPEED:                     65 Mb/s
CAPABILITIES.IS-SOFTWARE:               no
WIFI-PROPERTIES.WEP:                    yes
WIFI-PROPERTIES.WPA:                    yes
WIFI-PROPERTIES.WPA2:                   yes
WIFI-PROPERTIES.TKIP:                   yes
WIFI-PROPERTIES.CCMP:                   yes
WIFI-PROPERTIES.AP:                     yes
WIFI-PROPERTIES.ADHOC:                  yes
WIFI-PROPERTIES.2GHZ:                   yes
WIFI-PROPERTIES.5GHZ:                   no
CONNECTIONS.AVAILABLE-CONNECTION-PATHS: /org/freedesktop/NetworkManager/Settings/{4}
CONNECTIONS.AVAILABLE-CONNECTIONS[1]:   ca53c00b-da44-4a82-9736-ae6b8c6eaf42 | FW-190-A4-T
IP4.ADDRESS[1]:                         192.168.1.66/24
IP4.GATEWAY:                            192.168.1.254
IP4.ROUTE[1]:                           dst = 169.254.0.0/16, nh = 0.0.0.0, mt = 1000
IP4.DNS[1]:                             8.8.8.8
IP4.DNS[2]:                             8.8.4.4
DHCP4.OPTION[1]:                        requested_routers = 1
DHCP4.OPTION[2]:                        requested_domain_search = 1
DHCP4.OPTION[3]:                        requested_time_offset = 1
DHCP4.OPTION[4]:                        requested_domain_name = 1
DHCP4.OPTION[5]:                        requested_rfc3442_classless_static_routes = 1
DHCP4.OPTION[6]:                        requested_broadcast_address = 1
DHCP4.OPTION[7]:                        requested_netbios_scope = 1
DHCP4.OPTION[8]:                        requested_wpad = 1
DHCP4.OPTION[9]:                        next_server = 0.0.0.0
DHCP4.OPTION[10]:                       expiry = 1489791286
DHCP4.OPTION[11]:                       requested_interface_mtu = 1
DHCP4.OPTION[12]:                       requested_subnet_mask = 1
DHCP4.OPTION[13]:                       dhcp_lease_time = 3600
DHCP4.OPTION[14]:                       dhcp_message_type = 5
DHCP4.OPTION[15]:                       ip_address = 192.168.1.66
DHCP4.OPTION[16]:                       requested_static_routes = 1
DHCP4.OPTION[17]:                       requested_domain_name_servers = 1
DHCP4.OPTION[18]:                       routers = 192.168.1.254
DHCP4.OPTION[19]:                       broadcast_address = 192.168.1.255
DHCP4.OPTION[20]:                       requested_ntp_servers = 1
DHCP4.OPTION[21]:                       requested_netbios_name_servers = 1
DHCP4.OPTION[22]:                       domain_name_servers = 192.168.1.254 62.101.93.101 83.103.25.250
DHCP4.OPTION[23]:                       requested_ms_classless_static_routes = 1
DHCP4.OPTION[24]:                       subnet_mask = 255.255.255.0
DHCP4.OPTION[25]:                       network_number = 192.168.1.0
DHCP4.OPTION[26]:                       requested_host_name = 1
DHCP4.OPTION[27]:                       dhcp_server_identifier = 192.168.1.254

GENERAL.DEVICE:                         enp2s0
GENERAL.TYPE:                           ethernet
GENERAL.NM-TYPE:                        NMDeviceEthernet
GENERAL.VENDOR:                         Realtek Semiconductor Co., Ltd.
GENERAL.PRODUCT:                        RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (Motherboard)
GENERAL.DRIVER:                         r8168
GENERAL.DRIVER-VERSION:                 8.041.00-NAPI
GENERAL.FIRMWARE-VERSION:               
GENERAL.HWADDR:                         <MAC 'enp2s0' [IF1]>
GENERAL.MTU:                            1500
GENERAL.STATE:                          20 (unavailable)
GENERAL.REASON:                         2 (Device is now managed)
GENERAL.UDI:                            /sys/devices/pci0000:00/0000:00:04.0/0000:02:00.0/net/enp2s0
GENERAL.IP-IFACE:                       
GENERAL.IS-SOFTWARE:                    no
GENERAL.NM-MANAGED:                     yes
GENERAL.AUTOCONNECT:                    yes
GENERAL.FIRMWARE-MISSING:               no
GENERAL.NM-PLUGIN-MISSING:              no
GENERAL.PHYS-PORT-ID:                   --
GENERAL.CONNECTION:                     --
GENERAL.CON-UUID:                       --
GENERAL.CON-PATH:                       --
GENERAL.METERED:                        unknown
CAPABILITIES.CARRIER-DETECT:            yes
CAPABILITIES.SPEED:                     unknown
CAPABILITIES.IS-SOFTWARE:               no
WIRED-PROPERTIES.CARRIER:               off
CONNECTIONS.AVAILABLE-CONNECTION-PATHS: 

GENERAL.DEVICE:                         enx<IF from MAC [IF2]>
GENERAL.TYPE:                           ethernet
GENERAL.NM-TYPE:                        NMDeviceEthernet
GENERAL.VENDOR:                         Realtek
GENERAL.PRODUCT:                        USB 10/100/1000 LAN
GENERAL.DRIVER:                         r8152
GENERAL.DRIVER-VERSION:                 v1.08.2
GENERAL.FIRMWARE-VERSION:               
GENERAL.HWADDR:                         <MAC 'enx<IF from MAC [IF2]>' [IF2]>
GENERAL.MTU:                            1500
GENERAL.STATE:                          20 (unavailable)
GENERAL.REASON:                         2 (Device is now managed)
GENERAL.UDI:                            /sys/devices/pci0000:00/0000:00:10.1/usb9/9-2/9-2.4/9-2.4.4/9-2.4.4:1.0/net/enx<IF from MAC [IF2]>
GENERAL.IP-IFACE:                       
GENERAL.IS-SOFTWARE:                    no
GENERAL.NM-MANAGED:                     yes
GENERAL.AUTOCONNECT:                    yes
GENERAL.FIRMWARE-MISSING:               no
GENERAL.NM-PLUGIN-MISSING:              no
GENERAL.PHYS-PORT-ID:                   --
GENERAL.CONNECTION:                     --
GENERAL.CON-UUID:                       --
GENERAL.CON-PATH:                       --
GENERAL.METERED:                        unknown
CAPABILITIES.CARRIER-DETECT:            yes
CAPABILITIES.SPEED:                     unknown
CAPABILITIES.IS-SOFTWARE:               no
WIRED-PROPERTIES.CARRIER:               off
CONNECTIONS.AVAILABLE-CONNECTION-PATHS: 

SSID                    BSSID              MODE   CHAN  FREQ      RATE       SIGNAL  BARS  SECURITY     ACTIVE  * 
albert                  <MAC 'albert' [AC5]>  Infra  6     2437 MHz  54 Mbit/s  87      ▂▄▆█  WPA2         no        
FASTWEB-1-0021966FD164  <MAC 'FASTWEB-1-0021966FD164' [AC2]>  Infra  1     2412 MHz  54 Mbit/s  84      ▂▄▆█  WPA1         no        
WOW FI - FASTWEB        <MAC 'WOW FI - FASTWEB' [AC4]>  Infra  9     2452 MHz  54 Mbit/s  74      ▂▄▆_  WPA2 802.1X  no        
FW-190-A4-T             <MAC 'FW-190-A4-T' [AC1]>  Infra  9     2452 MHz  54 Mbit/s  58      ▂▄▆_  WPA1 WPA2    yes     * 
TIM-67472105-EXT        <MAC 'TIM-67472105-EXT' [AC3]>  Infra  1     2412 MHz  54 Mbit/s  44      ▂▄__  WPA2         no        
--                      <MAC '--' [AN6]>  Infra  6     2437 MHz  54 Mbit/s  44      ▂▄__  --           no        
TIM-67472105            <MAC 'TIM-67472105' [AN7]>  Infra  1     2412 MHz  54 Mbit/s  4       ____  WPA1 WPA2    no        
TIM-85926153            <MAC 'TIM-85926153' [AN8]>  Infra  11    2462 MHz  54 Mbit/s  4       ____  WPA2         no        
D-Link DSL-2750B        <MAC 'D-Link DSL-2750B' [AC7]>  Infra  11    2462 MHz  54 Mbit/s  4       ____  WPA2         no        

##### NetworkManager.state ##############

[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
WimaxEnabled=true

##### NetworkManager.conf ###############

[main]
plugins=ifupdown,keyfile,ofono
dns=dnsmasq

[ifupdown]
managed=false

##### NetworkManager profiles ###########

[[/etc/NetworkManager/system-connections/InfostradaWiFi-53a687]] (600 root)
[connection] id=InfostradaWiFi-53a687 | type=wifi | permissions=user:mbr-chess:;
[wifi] mac-address=<MAC 'wlx<IF from MAC [IF3]>' [IF3]> | mac-address-blacklist= | ssid=InfostradaWiFi-53a687
[ipv4] method=auto
[ipv6] method=auto

[[/etc/NetworkManager/system-connections/RINESI2015 2]] (600 root)
[connection] id=RINESI2015 2 | type=wifi | permissions=user:mbr-chess:;
[wifi] mac-address=<MAC 'wlx<IF from MAC [IF3]>' [IF3]> | mac-address-blacklist= | ssid=RINESI2015
[ipv4] method=auto
[ipv6] method=ignore

[[/etc/NetworkManager/system-connections/FW-190-A4-T]] (600 root)
[connection] id=FW-190-A4-T | type=wifi | autoconnect=false | permissions=user:mbr-chess:;
[wifi] mac-address=<MAC 'wlx<IF from MAC [IF3]>' [IF3]> | mac-address-blacklist= | ssid=FW-190-A4-T
[ipv4] method=auto
[ipv6] method=ignore

[[/etc/NetworkManager/system-connections/RINESI2015]] (600 root)
[connection] id=RINESI2015 | type=wifi | permissions=user:ubuntu:;
[wifi] mac-address=<MAC address> | mac-address-blacklist= | ssid=RINESI2015
[ipv4] method=auto
[ipv6] method=auto

##### iw reg get ########################

Region: Europe/Rome (based on set time zone)

country 00: DFS-UNSET
	(2402 - 2472 @ 40), (N/A, 20), (N/A)
	(2457 - 2482 @ 40), (N/A, 20), (N/A), NO-IR
	(2474 - 2494 @ 20), (N/A, 20), (N/A), NO-OFDM, NO-IR
	(5170 - 5250 @ 80), (N/A, 20), (N/A), NO-IR
	(5250 - 5330 @ 80), (N/A, 20), (0 ms), DFS, NO-IR
	(5490 - 5730 @ 160), (N/A, 20), (0 ms), DFS, NO-IR
	(5735 - 5835 @ 80), (N/A, 20), (N/A), NO-IR
	(57240 - 63720 @ 2160), (N/A, 0), (N/A)

##### iwlist channels ###################

enp2s0    no frequency information.

lo        no frequency information.

enx<IF from MAC [IF2]>  no frequency information.

wlx<IF from MAC [IF3]>  13 channels in total; available frequencies :
          Channel 01 : 2.412 GHz
          Channel 02 : 2.417 GHz
          Channel 03 : 2.422 GHz
          Channel 04 : 2.427 GHz
          Channel 05 : 2.432 GHz
          Channel 06 : 2.437 GHz
          Channel 07 : 2.442 GHz
          Channel 08 : 2.447 GHz
          Channel 09 : 2.452 GHz
          Channel 10 : 2.457 GHz
          Channel 11 : 2.462 GHz
          Channel 12 : 2.467 GHz
          Channel 13 : 2.472 GHz
          Current Frequency:2.452 GHz (Channel 9)

##### iwlist scan #######################

enp2s0    Interface doesn't support scanning.

lo        Interface doesn't support scanning.

enx<IF from MAC [IF2]>  Interface doesn't support scanning.

Channel occupancy:

      2   APs on   Frequency:2.412 GHz (Channel 1)
      2   APs on   Frequency:2.437 GHz (Channel 6)
      2   APs on   Frequency:2.452 GHz (Channel 9)
      1   APs on   Frequency:2.462 GHz (Channel 11)

wlx<IF from MAC [IF3]>  Scan completed :
          Cell 01 - Address: <MAC 'FW-190-A4-T' [AC1]>
                    Channel:9
                    Frequency:2.452 GHz (Channel 9)
                    Quality=48/70  Signal level=-62 dBm  
                    Encryption key:on
                    ESSID:"FW-190-A4-T"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
                              24 Mb/s; 36 Mb/s; 54 Mb/s
                    Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
                    Mode:Master
                    Extra:tsf=000000341bb39b77
                    Extra: Last beacon: 56ms ago
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                    IE: WPA Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (1) : TKIP
                        Authentication Suites (1) : PSK
          Cell 02 - Address: <MAC 'FASTWEB-1-0021966FD164' [AC2]>
                    Channel:1
                    Frequency:2.412 GHz (Channel 1)
                    Quality=60/70  Signal level=-50 dBm  
                    Encryption key:on
                    ESSID:"FASTWEB-1-0021966FD164"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 9 Mb/s
                              18 Mb/s; 36 Mb/s; 54 Mb/s
                    Bit Rates:6 Mb/s; 12 Mb/s; 24 Mb/s; 48 Mb/s
                    Mode:Master
                    Extra:tsf=0000006e8ccb213a
                    Extra: Last beacon: 2120ms ago
                    IE: WPA Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : TKIP CCMP
                        Authentication Suites (1) : PSK
          Cell 03 - Address: <MAC 'TIM-67472105-EXT' [AC3]>
                    Channel:1
                    Frequency:2.412 GHz (Channel 1)
                    Quality=38/70  Signal level=-72 dBm  
                    Encryption key:on
                    ESSID:"TIM-67472105-EXT"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
                              9 Mb/s; 12 Mb/s; 18 Mb/s
                    Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
                    Mode:Master
                    Extra:tsf=0000001372368e71
                    Extra: Last beacon: 56ms ago
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
          Cell 04 - Address: <MAC 'WOW FI - FASTWEB' [AC4]>
                    Channel:9
                    Frequency:2.452 GHz (Channel 9)
                    Quality=48/70  Signal level=-62 dBm  
                    Encryption key:on
                    ESSID:"WOW FI - FASTWEB"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
                              24 Mb/s; 36 Mb/s; 54 Mb/s
                    Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
                    Mode:Master
                    Extra:tsf=000000341bb3aa5b
                    Extra: Last beacon: 56ms ago
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : 802.1x
          Cell 05 - Address: <MAC 'albert' [AC5]>
                    Channel:6
                    Frequency:2.437 GHz (Channel 6)
                    Quality=60/70  Signal level=-50 dBm  
                    Encryption key:on
                    ESSID:"albert"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
                              9 Mb/s; 12 Mb/s; 18 Mb/s
                    Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
                    Mode:Master
                    Extra:tsf=0000006e5f8e85c3
                    Extra: Last beacon: 56ms ago
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
          Cell 06 - Address: <MAC 'InfostradaWiFi-53a687' [AC6]>
                    Channel:6
                    Frequency:2.437 GHz (Channel 6)
                    Quality=14/70  Signal level=-96 dBm  
                    Encryption key:on
                    ESSID:"InfostradaWiFi-53a687"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
                              24 Mb/s; 36 Mb/s; 54 Mb/s
                    Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
                    Mode:Master
                    Extra:tsf=000003963b8dc183
                    Extra: Last beacon: 1368ms ago
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : PSK
                    IE: WPA Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : PSK
          Cell 07 - Address: <MAC 'D-Link DSL-2750B' [AC7]>
                    Channel:11
                    Frequency:2.462 GHz (Channel 11)
                    Quality=12/70  Signal level=-98 dBm  
                    Encryption key:on
                    ESSID:"D-Link DSL-2750B"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
                              24 Mb/s; 36 Mb/s; 54 Mb/s
                    Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
                    Mode:Master
                    Extra:tsf=0000003cc6a03343
                    Extra: Last beacon: 56ms ago
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK

##### module infos ######################

[rtl8xxxu]
filename:       /lib/modules/4.4.0-62-generic/kernel/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.ko
firmware:       rtlwifi/rtl8192cufw_TMSC.bin
firmware:       rtlwifi/rtl8192cufw_B.bin
firmware:       rtlwifi/rtl8192cufw_A.bin
firmware:       rtlwifi/rtl8723aufw_B_NoBT.bin
firmware:       rtlwifi/rtl8723aufw_B.bin
firmware:       rtlwifi/rtl8723aufw_A.bin
license:        GPL
description:    RTL8XXXu USB mac80211 Wireless LAN Driver
author:         Jes Sorensen <Jes.Sorensen@redhat.com>
srcversion:     6318AD97B9A7F66A430B132
depends:        mac80211
intree:         Y
vermagic:       4.4.0-62-generic SMP mod_unload modversions 
parm:           debug:Set debug mask (int)
parm:           ht40_2g:Enable HT40 support on the 2.4GHz band (bool)

[rtl8192cu]
filename:       /lib/modules/4.4.0-62-generic/kernel/drivers/net/wireless/realtek/rtlwifi/rtl8192cu/rtl8192cu.ko
firmware:       rtlwifi/rtl8192cufw_TMSC.bin
firmware:       rtlwifi/rtl8192cufw_B.bin
firmware:       rtlwifi/rtl8192cufw_A.bin
firmware:       rtlwifi/rtl8192cufw.bin
description:    Realtek 8192C/8188C 802.11n USB wireless
license:        GPL
author:         Larry Finger	<Larry.Finger@lwfinger.net>
author:         Ziv Huang	<ziv_huang@realtek.com>
author:         Georgia		<georgia@realtek.com>
srcversion:     2C9D776AE1B25BDC5405217
depends:        mac80211,rtlwifi,rtl8192c-common,rtl_usb
intree:         Y
vermagic:       4.4.0-62-generic SMP mod_unload modversions 
parm:           swenc:Set to 1 for software crypto (default 0)
 (bool)
parm:           debug:Set debug level (0-5) (default 0) (int)

[rtl_usb]
filename:       /lib/modules/4.4.0-62-generic/kernel/drivers/net/wireless/realtek/rtlwifi/rtl_usb.ko
description:    USB basic driver for rtlwifi
license:        GPL
author:         Larry Finger	<Larry.FInger@lwfinger.net>
author:         Realtek WlanFAE	<wlanfae@realtek.com>
author:         lizhaoming	<chaoming_li@realsil.com.cn>
srcversion:     856F91AC5F9AFDB1993D1E4
depends:        mac80211,rtlwifi
intree:         Y
vermagic:       4.4.0-62-generic SMP mod_unload modversions 

[rtl8192c_common]
filename:       /lib/modules/4.4.0-62-generic/kernel/drivers/net/wireless/realtek/rtlwifi/rtl8192c/rtl8192c-common.ko
description:    Realtek 8192C/8188C 802.11n PCI wireless
license:        GPL
author:         Larry Finger	<Larry.Finger@lwfinger.net>
author:         Ziv Huang	<ziv_huang@realtek.com>
author:         Georgia		<georgia@realtek.com>
author:         Realtek WlanFAE	<wlanfae@realtek.com>
author:         lizhaoming	<chaoming_li@realsil.com.cn>
srcversion:     68438042FA7FFFCF4EB1B75
depends:        rtlwifi
intree:         Y
vermagic:       4.4.0-62-generic SMP mod_unload modversions 

[rtlwifi]
filename:       /lib/modules/4.4.0-62-generic/kernel/drivers/net/wireless/realtek/rtlwifi/rtlwifi.ko
description:    Realtek 802.11n PCI wireless core
license:        GPL
author:         Larry Finger	<Larry.FInger@lwfinger.net>
author:         Realtek WlanFAE	<wlanfae@realtek.com>
author:         lizhaoming	<chaoming_li@realsil.com.cn>
srcversion:     81DBE78DD4871E3EC5F2E9D
depends:        mac80211,cfg80211
intree:         Y
vermagic:       4.4.0-62-generic SMP mod_unload modversions 

[mac80211]
filename:       /lib/modules/4.4.0-62-generic/kernel/net/mac80211/mac80211.ko
license:        GPL
description:    IEEE 802.11 subsystem
srcversion:     0B114888238BEBBE8043BC5
depends:        cfg80211
intree:         Y
vermagic:       4.4.0-62-generic SMP mod_unload modversions 
parm:           minstrel_vht_only:Use only VHT rates when VHT is supported by sta. (bool)
parm:           max_nullfunc_tries:Maximum nullfunc tx tries before disconnecting (reason 4). (int)
parm:           max_probe_tries:Maximum probe tries before disconnecting (reason 4). (int)
parm:           beacon_loss_count:Number of beacon intervals before we decide beacon was lost. (int)
parm:           probe_wait_ms:Maximum time(ms) to wait for probe response before disconnecting (reason 4). (int)
parm:           ieee80211_default_rc_algo:Default rate control algorithm for mac80211 to use (charp)

[cfg80211]
filename:       /lib/modules/4.4.0-62-generic/kernel/net/wireless/cfg80211.ko
description:    wireless configuration support
license:        GPL
author:         Johannes Berg
srcversion:     902BDA34A9B6BB2AE64F135
depends:        
intree:         Y
vermagic:       4.4.0-62-generic SMP mod_unload modversions 
parm:           bss_entries_limit:limit to number of scan BSS entries (per wiphy, default 1000) (int)
parm:           ieee80211_regdom:IEEE 802.11 regulatory domain code (charp)
parm:           cfg80211_disable_40mhz_24ghz:Disable 40MHz support in the 2.4GHz band (bool)

##### module parameters #################

grep: /sys/module/rtl8xxxu/parameters/debug: Permission denied
grep: /sys/module/rtl8xxxu/parameters/ht40_2g: Permission denied
[rtl8xxxu]

[rtl8192cu]
debug: 0
swenc: N

[mac80211]
beacon_loss_count: 7
ieee80211_default_rc_algo: minstrel_ht
max_nullfunc_tries: 2
max_probe_tries: 5
minstrel_vht_only: Y
probe_wait_ms: 500

[cfg80211]
bss_entries_limit: 1000
cfg80211_disable_40mhz_24ghz: N
ieee80211_regdom: 00

##### /etc/modules ######################

##### modprobe options ##################

[/etc/modprobe.d/blacklist-ath_pci.conf]
blacklist ath_pci

[/etc/modprobe.d/blacklist.conf]
blacklist evbug
blacklist usbmouse
blacklist usbkbd
blacklist eepro100
blacklist de4x5
blacklist eth1394
blacklist snd_intel8x0m
blacklist snd_aw2
blacklist i2c_i801
blacklist prism54
blacklist bcm43xx
blacklist garmin_gps
blacklist asus_acpi
blacklist snd_pcsp
blacklist pcspkr
blacklist amd76x_edac

[/etc/modprobe.d/blacklist-rare-network.conf]
alias net-pf-3 off
alias net-pf-6 off
alias net-pf-9 off
alias net-pf-11 off
alias net-pf-12 off
alias net-pf-19 off
alias net-pf-21 off
alias net-pf-36 off

[/etc/modprobe.d/iwlwifi.conf]
remove iwlwifi \
(/sbin/lsmod | grep -o -e ^iwlmvm -e ^iwldvm -e ^iwlwifi | xargs /sbin/rmmod) \
&& /sbin/modprobe -r mac80211

[/etc/modprobe.d/mlx4.conf]
softdep mlx4_core post: mlx4_en

[/etc/modprobe.d/r8168-dkms.conf]
alias	pci:v00001186d00004300sv00001186sd00004B10bc*sc*i*	r8168
alias	pci:v000010ECd00008168sv*sd*bc*sc*i*			r8168

##### rc.local ##########################

exit 0

##### pm-utils ##########################

##### udev rules ########################

##### dmesg #############################

[    3.830978] r8152 9-2.4.4:1.0 eth0: v1.08.2
[    4.547184] IPv6: ADDRCONF(NETDEV_UP): enp2s0: link is not ready
[    4.547676] enp2s0: 0xffffc90000c6a000, <MAC 'enp2s0' [IF1]>, IRQ 37
[    4.628753] IPv6: ADDRCONF(NETDEV_UP): enp2s0: link is not ready
[    4.721379] rtl8192cu: Chip version 0x11
[    4.798378] rtl8192cu: MAC address: <MAC 'wlx<IF from MAC [IF3]>' [IF3]>
[    4.798383] rtl8192cu: Board Type 0
[    4.798681] rtl_usb: rx_max_size 15360, rx_urb_num 8, in_ep 1
[    4.798713] rtl8192cu: Loading firmware rtlwifi/rtl8192cufw_TMSC.bin
[    4.804807] ieee80211 phy0: Selected rate control algorithm 'rtl_rc'
[    4.814611] rtl8192cu 2-1:1.0 wlx<IF from MAC [IF3]>: renamed from wlan0
[    4.856763] IPv6: ADDRCONF(NETDEV_UP): wlx<IF from MAC [IF3]>: link is not ready
[    4.859993] rtl8192cu: MAC auto ON okay!
[    4.892861] rtl8192cu: Tx queue select: 0x05
[    5.310097] IPv6: ADDRCONF(NETDEV_UP): wlx<IF from MAC [IF3]>: link is not ready
[    5.310329] r8152 9-2.4.4:1.0 enx<IF from MAC [IF2]>: renamed from eth0
[    5.326860] IPv6: ADDRCONF(NETDEV_UP): enx<IF from MAC [IF2]>: link is not ready (repeated 2 times)
[    5.461863] IPv6: ADDRCONF(NETDEV_UP): wlx<IF from MAC [IF3]>: link is not ready
[   14.559140] wlx<IF from MAC [IF3]>: authenticate with <MAC 'FW-190-A4-T' [AC1]>
[   14.586124] wlx<IF from MAC [IF3]>: send auth to <MAC 'FW-190-A4-T' [AC1]> (try 1/3)
[   14.588233] wlx<IF from MAC [IF3]>: authenticated
[   14.591509] wlx<IF from MAC [IF3]>: associate with <MAC 'FW-190-A4-T' [AC1]> (try 1/3)
[   14.596322] wlx<IF from MAC [IF3]>: RX AssocResp from <MAC 'FW-190-A4-T' [AC1]> (capab=0x411 status=0 aid=2)
[   14.697464] wlx<IF from MAC [IF3]>: associated
[   14.697476] IPv6: ADDRCONF(NETDEV_CHANGE): wlx<IF from MAC [IF3]>: link becomes ready
[  773.532652] wlx<IF from MAC [IF3]>: deauthenticating from <MAC 'FW-190-A4-T' [AC1]> by local choice (Reason: 3=DEAUTH_LEAVING)
[  776.970979] wlx<IF from MAC [IF3]>: authenticate with <MAC 'FW-190-A4-T' [AC1]>
[  776.982238] wlx<IF from MAC [IF3]>: send auth to <MAC 'FW-190-A4-T' [AC1]> (try 1/3)
[  776.984473] wlx<IF from MAC [IF3]>: authenticated
[  776.987935] wlx<IF from MAC [IF3]>: associate with <MAC 'FW-190-A4-T' [AC1]> (try 1/3)
[  777.002856] wlx<IF from MAC [IF3]>: RX AssocResp from <MAC 'FW-190-A4-T' [AC1]> (capab=0x411 status=0 aid=2)
[  777.004723] wlx<IF from MAC [IF3]>: associated

########## wireless info END ############

Grazie

mbr-chess

[thece]

Ci vogliamo giocare la carta dell'impostazione del Regulatory Domain? Giochiamocela, modifica il file /etc/default/crda impostando la chiave

Codice: Seleziona tutto

REGDOMAIN=IT

salva il file e riavvia il PC


Che modem / router hai? (Marca e modello)

[mbr-chess]

thece,

fatto, adesso vediamo.

Il router è un Technicolor MediaAccess TG1100 fornito da FastWeb.
Me lo hanno cambiato l'altro ieri in quanto mi lamentavo di questo problema e pensavo che fosse causato da loro.
Temo che mi sbagliavo ....

Grazie

mbr-chess

[thece]

L'informazione era più che altro per soddisfare una mia curiosità.

Ho trovato una segnalazione su Lanchpad che parla del tuo problema, sempre in riferimento al driver della tua scheda di rete. Alcuni post in Rete suggeriscono come promettente l'applicazione di questa fix al driver

https://github.com/pvaret/rtl8192cu-fixes

[mbr-chess]

thece,

il REGDOMAIN=IT non ha cambiato la situazione.

Quella segnalazione l'avevo letta ma visto che non sapevo con certezza il chip giusto e non sapendo cosa facessi ho preferito soprassedere.

Adesso che conosco il chip (rtl8192cu) procedo ad applicare quel fix, che ne dici?

Grazie

mbr-chess

[thece]

Adesso che conosco il chip (rtl8192cu) procedo ad applicare quel fix, che ne dici?

La decisione è tua.
Nei due precedenti interventi che ti ho proposto, farti tornare indietro in caso non funzionamento era "banale". In questo caso non mi pronuncio, non avendo la possibilità di provare.

[mbr-chess]

thece,

in effetti era proprio il mio timore.
Se la fix "fa danni" io non sono assolutamente in grado di ritornare indietro (senza il collegamento internet a supporto).
A questo punto lascerei la fix come "ultima spiaggia".

Altre possibili soluzioni meno invasive da provare non ne esistono?
Per esempio, ha senso provare con un kernel precedente (fino a due settimane fa non avevo problemi).

Se del caso posso comprare un'altra chiavetta con un altro chip (non costano praticamente niente).

Grazie

mbr-chess

[thece]

Se la fix "fa danni" io non sono assolutamente in grado di ritornare indietro (senza il collegamento internet a supporto).
A questo punto lascerei la fix come "ultima spiaggia".

Intanto non rimani senza collegamento a Internet perchè hai ancora la scheda di rete EThernet. Poi la tua scheda di rete WIFI non sta funzionando quindi peggio di così non può andare

Altre possibili soluzioni meno invasive da provare non ne esistono?
Per esempio, ha senso provare con un kernel precedente (fino a due settimane fa non avevo problemi).

Quando leggo questo genere di frasi mi viene sempre molto da ridere: non hai bisogno ne della mia autorizzazione ne di quella di altri utenti per avviare il tuo PC con un altro kernel.
Per le altre soluzioni: al momento non ho guardato altro

Se del caso posso comprare un'altra chiavetta con un altro chip (non costano praticamente niente).

(Purtroppo con Linux) questa è una buona idea a prescindere

[mbr-chess]

thece,

1- in effetti hai ragione, ma tieni presente che era l'una di notte (la mia già scarsa lucidità era oramai terminata);

2. volevo solo sapere se un tentativo del genere aveva un senso (tentativo che ho fatto questa mattina scalando sino al 4.4.0.53 ma senza successo);

3. adesso ne identifico una e, se non ne vengo fuori altrimenti, la compro.

Grazie

mbr-chess

[mbr-chess]

Completo il thread con il dettaglio dell'intervento effettuato (nel caso potesse servire anche ad altri):

Codice: Seleziona tutto

1. disabilitare ipv6

con
sudo gedit /etc/sysctl.conf

aggiungere in fondo
# Disabilito IPv6 globalmente
net.ipv6.conf.all.disable_ipv6=1


2. impostazione del Regulatory Domain

con
sudo gedit /etc/default/crda

aggiungere in fondo
REGDOMAIN=IT


3. aggiornamento driver rtl8192cu

prerequisiti
sudo apt-get update
sudo apt-get install git linux-headers-generic build-essential dkms

scaricare i nuovi driver
git clone https://github.com/pvaret/rtl8192cu-fixes.git


farli diventare moduli DKMS
sudo dkms add ./rtl8192cu-fixes

installarli
sudo dkms install 8192cu/1.10

aggiornare la lista dei moduli
sudo depmod -a

backlistare i vecchi
sudo cp ./rtl8192cu-fixes/blacklist-native-rtl8192.conf /etc/modprobe.d/

disabilitare il power management
sudo cp ./rtl8192cu-fixes/8192cu-disable-power-management.conf /etc/modprobe.d/


4. work-around per il network-manager per il MAC Address

con
sudo gedit /etc/NetworkManager/NetworkManager.conf

aggiungere in fondo
[device]
wifi.scan-rand-mac-address=no

[connection]
ethernet.cloned-mac-address=preserve
wifi.cloned-mac-address=preserve

I vari passi sono in parte suggeriti da thece (che ringrazio moltissimo, anche per suoi altri interventi sul tema) e in parte recuperati sul web.
Adesso mi sembra che la situazione sia migliorata tantissimo in stabilità, un po' meno in velocità.

Ho appena installato Kubuntu 17.04 su un laptop non recentissimo (Latitude e5430) che mi sembra più veloce.
Quanto prima effettuerò delle prove più strutturate per avere dei dati certi.

Buona giornata a tutti.

mbr-chess

[thece]

Mi toccherà approfondire le modifiche che hai fatto alla configurazione del Network Manager