[RISOLTO] segnale wifi basso con USB sitecom

[cichymarck]

ciao a tutti
sono alle prime armi con linux e ho installato ubuntu 16.04 lts
ho una usb sitecom n300 per il collegamento al wifi
anche ricercando sul web non ho trovato nulla al momento che mi possa aiutare

ovviamente prima il segnale era ottimo e mi pare di capire che sia un problema di driver ma non so dove sbattere la testa

[bingel]

Intanto modifica il titolo in qualcosa come: "segnale Wi-Fi basso con adattatore usb sitecom ...".

Con dei di titoli del genere passa anche la voglia di aiutare.

Poi posta piu dettagli relativamente al tuo dispositivo. Per esempio, per iniziare, posta l'output di:

Codice: Seleziona tutto

lsusb

[cichymarck]

Essendo nuovo non ho pratica col terminale, non sapevo da dove cominciare
domani posto i dati che mi hai richiesto.

[cichymarck]

Codice: Seleziona tutto

Bus 001 Device 005: ID 0bda:0151 Realtek Semiconductor Corp. Mass Storage Device (Multicard Reader)
Bus 001 Device 004: ID 0df6:0076 Sitecom Europe B.V. 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 002: ID 062a:4101 Creative Labs Wireless Keyboard/Mouse
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 002: ID 046d:c52e Logitech, Inc. MK260 Wireless Combo Receiver
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

[magozurlinux]

Da terminale con la chiavetta Siteconm inserita, da terminale postami questi comandi:

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dmesg | grep usb

questo comando impiega qualche secondo prima di emettere le informazioni

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sudo lshw -C network

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sudo ifconfig -a

[cichymarck]

Premetto che ho la fibra vodafone e che con windows mi arrivava a 70/75mb effettivi circa

Ecco gli output

dmesg | grep usb

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[    0.119571] usbcore: registered new interface driver usbfs
[    0.119571] usbcore: registered new interface driver hub
[    0.120004] usbcore: registered new device driver usb
[    0.820092] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[    0.820094] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    0.820096] usb usb1: Product: EHCI Host Controller
[    0.820098] usb usb1: Manufacturer: Linux 4.4.0-62-generic ehci_hcd
[    0.820100] usb usb1: SerialNumber: 0000:00:1d.7
[    0.820628] usb usb2: New USB device found, idVendor=1d6b, idProduct=0001
[    0.820630] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    0.820632] usb usb2: Product: UHCI Host Controller
[    0.820634] usb usb2: Manufacturer: Linux 4.4.0-62-generic uhci_hcd
[    0.820636] usb usb2: SerialNumber: 0000:00:1d.0
[    0.820983] usb usb3: New USB device found, idVendor=1d6b, idProduct=0001
[    0.820985] usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    0.820987] usb usb3: Product: UHCI Host Controller
[    0.820989] usb usb3: Manufacturer: Linux 4.4.0-62-generic uhci_hcd
[    0.820991] usb usb3: SerialNumber: 0000:00:1d.1
[    0.821348] usb usb4: New USB device found, idVendor=1d6b, idProduct=0001
[    0.821351] usb usb4: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    0.821353] usb usb4: Product: UHCI Host Controller
[    0.821355] usb usb4: Manufacturer: Linux 4.4.0-62-generic uhci_hcd
[    0.821357] usb usb4: SerialNumber: 0000:00:1d.2
[    0.821701] usb usb5: New USB device found, idVendor=1d6b, idProduct=0001
[    0.821704] usb usb5: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    0.821706] usb usb5: Product: UHCI Host Controller
[    0.821708] usb usb5: Manufacturer: Linux 4.4.0-62-generic uhci_hcd
[    0.821710] usb usb5: SerialNumber: 0000:00:1d.3
[    1.316592] usb 2-2: new full-speed USB device number 2 using uhci_hcd
[    1.636051] usb 3-2: new full-speed USB device number 2 using uhci_hcd
[    1.668031] usb 1-6: new high-speed USB device number 4 using ehci-pci
[    1.799051] usb 2-2: New USB device found, idVendor=046d, idProduct=c52e
[    1.799054] usb 2-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[    1.799056] usb 2-2: Product: USB Receiver
[    1.799058] usb 2-2: Manufacturer: Logitech
[    1.822763] usbcore: registered new interface driver usbhid
[    1.822766] usbhid: USB HID core driver
[    1.824815] input: Logitech USB Receiver as /devices/pci0000:00/0000:00:1d.0/usb2/2-2/2-2:1.0/0003:046D:C52E.0001/input/input5
[    1.825010] usb 1-6: New USB device found, idVendor=0df6, idProduct=0076
[    1.825013] usb 1-6: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[    1.825015] usb 1-6: Product: 802.11n NIC
[    1.825017] usb 1-6: Manufacturer: Realtek
[    1.825019] usb 1-6: SerialNumber: 00E04C0001
[    1.880486] hid-generic 0003:046D:C52E.0001: input,hidraw0: USB HID v1.11 Keyboard [Logitech USB Receiver] on usb-0000:00:1d.0-2/input0
[    1.881151] input: Logitech USB Receiver as /devices/pci0000:00/0000:00:1d.0/usb2/2-2/2-2:1.1/0003:046D:C52E.0002/input/input6
[    1.936170] hid-generic 0003:046D:C52E.0002: input,hiddev0,hidraw1: USB HID v1.11 Mouse [Logitech USB Receiver] on usb-0000:00:1d.0-2/input1
[    1.940034] usb 1-8: new high-speed USB device number 5 using ehci-pci
[    2.044046] usb 3-2: New USB device found, idVendor=062a, idProduct=4101
[    2.044049] usb 3-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[    2.044051] usb 3-2: Product: 2.4G Keyboard Mouse
[    2.044053] usb 3-2: Manufacturer: MOSART Semi.
[    2.050461] input: MOSART Semi. 2.4G Keyboard Mouse as /devices/pci0000:00/0000:00:1d.1/usb3/3-2/3-2:1.0/0003:062A:4101.0003/input/input7
[    2.104089] hid-generic 0003:062A:4101.0003: input,hidraw2: USB HID v1.10 Keyboard [MOSART Semi. 2.4G Keyboard Mouse] on usb-0000:00:1d.1-2/input0
[    2.108966] input: MOSART Semi. 2.4G Keyboard Mouse as /devices/pci0000:00/0000:00:1d.1/usb3/3-2/3-2:1.1/0003:062A:4101.0004/input/input8
[    2.164148] hid-generic 0003:062A:4101.0004: input,hiddev0,hidraw3: USB HID v1.10 Mouse [MOSART Semi. 2.4G Keyboard Mouse] on usb-0000:00:1d.1-2/input1
[    2.627137] usb 1-8: New USB device found, idVendor=0bda, idProduct=0151
[    2.627140] usb 1-8: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[    2.627143] usb 1-8: Product: USB2.0-CRW
[    2.627145] usb 1-8: Manufacturer: Generic
[    2.627147] usb 1-8: SerialNumber: 20060413092100000
[    2.887641] usb-storage 1-8:1.0: USB Mass Storage device detected
[    2.887860] scsi host2: usb-storage 1-8:1.0
[    2.887948] usbcore: registered new interface driver usb-storage
[    2.889429] usbcore: registered new interface driver uas
[   17.601738] usbcore: registered new interface driver r8188eu

sudo lshw -C network

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*-network               
       description: Ethernet interface
       product: RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:02:00.0
       logical name: enp2s0
       version: 01
       serial: 00:21:85:5f:b8:c6
       size: 10Mbit/s
       capacity: 100Mbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm vpd msi pciexpress bus_master cap_list rom ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half latency=0 link=no multicast=yes port=MII speed=10Mbit/s
       resources: irq:26 ioport:de00(size=256) memory:fdbff000-fdbfffff memory:fdb00000-fdb1ffff
  *-network
       description: Wireless interface
       physical id: 1
       bus info: usb@1:6
       logical name: wlx64d1a3298306
       serial: 64:d1:a3:29:83:06
       capabilities: ethernet physical wireless
       configuration: broadcast=yes driver=r8188eu ip=192.168.1.6 multicast=yes wireless=IEEE 802.11bgn

sudo ifconfig -a

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enp2s0    Link encap:Ethernet  IndirizzoHW 00:21:85:5f:b8:c6  
          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:1273 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1273 errors:0 dropped:0 overruns:0 carrier:0
          collisioni:0 txqueuelen:1 
          Byte RX:105518 (105.5 KB)  Byte TX:105518 (105.5 KB)

wlx64d1a3298306 Link encap:Ethernet  IndirizzoHW 64:d1:a3:29:83:06  
          indirizzo inet:192.168.1.6  Bcast:192.168.1.255  Maschera:255.255.255.0
          indirizzo inet6: fe80::d19a:a629:2680:1c49/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:30997 errors:0 dropped:236 overruns:0 frame:0
          TX packets:14765 errors:0 dropped:0 overruns:0 carrier:0
          collisioni:0 txqueuelen:1000 
          Byte RX:41876110 (41.8 MB)  Byte TX:1755410 (1.7 MB)

[thece]

posta anche questi

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modinfo r8188eu

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grep -R [[:graph:]] /sys/module/r8188eu/parameters

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sudo iwlist wlx64d1a3298306 scan

[magozurlinux]

wlx64d1a3298306 Link encap:Ethernet IndirizzoHW 64:d1:a3:29:83:06
indirizzo inet:192.168.1.6 Bcast:192.168.1.255 Maschera:255.255.255.0
indirizzo inet6: fe80::d19a:a6291c49/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:30997 errors:0 dropped:236 overruns:0 frame:0
TX packets:14765 errors:0 dropped:0 overruns:0 carrier:0
collisioni:0 txqueuelen:1000
Byte RX:41876110 (41.8 MB) Byte TX:1755410 (1.7 MB)

Hai l'IPv6 attivo.

Clicca in alto a dx sull'icona di NM, vai in basso su Modifica connessioni...; clicca su Senza fili, seleziona la tua rete wireless, clicca su Modifica, vai su Impostazioni IPv6, mettilo su Ignora e clicca in basso a dx su Salva.

Disconnetti e poi riconnettiti di nuovo, prova la connessione.

Da terminale postami questi comandi con la chiavetta Sitecom inserita:

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dmesg | grep r8188eu

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iwconfig

[cichymarck]

grazie a tutti intanto...

tra un'oretta faccio un tentativo con la soluzione proposta da magozurlinux, poi posto tutto, anche gli output che ha richiesto thece

[thece]

tra un'oretta faccio un tentativo con la soluzione proposta da magozurlinux, poi posto tutto, anche gli output che ha richiesto thece

Secondo me sul "segnale basso" disabilitare il protocollo di rete IPv6 non serve, ma male non fa. Al limite ne beneficiano le prestazioni ... e comunque io lo farei editando il file /etc/sysctl.conf

[cichymarck]

ho messo ignora per la connessione ipv6 ma il segnale rimane minimo/nullo

ecco gli output che mi avete richiesto

dmesg ! grep r8188eu

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[   17.721054] r8188eu: module is from the staging directory, the quality is unknown, you have been warned.
[   17.721451] r8188eu: module verification failed: signature and/or required key missing - tainting kernel
[   17.754465] usbcore: registered new interface driver r8188eu
[   19.087398] r8188eu 1-6:1.0 wlx64d1a3298306: renamed from wlan0

iwconfig

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enp2s0    no wireless extensions.

lo        no wireless extensions.

wlx64d1a3298306  IEEE 802.11bgn  ESSID:"Vodafone-34240345"  Nickname:"<WIFI@REALTEK>"
          Mode:Managed  Frequency:2.427 GHz  Access Point: 64:59:F8:C9:EF:18   
          Bit Rate:72.2 Mb/s   Sensitivity:0/0  
          Retry:off   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality=0/100  Signal level=3/100  Noise level=0/100
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0

modinfo r8188eu

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filename:       /lib/modules/4.4.0-62-generic/kernel/drivers/staging/rtl8188eu/r8188eu.ko
version:        v4.1.4_6773.20130222
author:         Realtek Semiconductor Corp.
description:    Realtek Wireless Lan Driver
license:        GPL
srcversion:     954BD49100D89A8C568DA08
alias:          usb:v0DF6p0076d*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v2001p3311d*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v2001p3310d*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v2001p330Fd*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v07B8p8179d*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v056Ep4008d*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v0BDAp0179d*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v0BDAp8179d*dc*dsc*dp*ic*isc*ip*in*
depends:        cfg80211
staging:        Y
intree:         Y
vermagic:       4.4.0-62-generic SMP mod_unload modversions 
parm:           rtw_ips_mode:The default IPS mode (int)
parm:           ifname:The default name to allocate for first interface (charp)
parm:           if2name:The default name to allocate for second interface (charp)
parm:           rtw_initmac:charp
parm:           rtw_channel_plan:int
parm:           rtw_chip_version:int
parm:           rtw_rfintfs:int
parm:           rtw_lbkmode:int
parm:           rtw_network_mode:int
parm:           rtw_channel:int
parm:           rtw_wmm_enable:int
parm:           rtw_vrtl_carrier_sense:int
parm:           rtw_vcs_type:int
parm:           rtw_busy_thresh:int
parm:           rtw_ht_enable:int
parm:           rtw_cbw40_enable:int
parm:           rtw_ampdu_enable:int
parm:           rtw_rx_stbc:int
parm:           rtw_ampdu_amsdu:int
parm:           rtw_lowrate_two_xmit:int
parm:           rtw_rf_config:int
parm:           rtw_power_mgnt:int
parm:           rtw_smart_ps:int
parm:           rtw_low_power:int
parm:           rtw_wifi_spec:int
parm:           rtw_antdiv_cfg:int
parm:           rtw_antdiv_type:int
parm:           rtw_enusbss:int
parm:           rtw_hwpdn_mode:int
parm:           rtw_hwpwrp_detect:int
parm:           rtw_hw_wps_pbc:int
parm:           rtw_max_roaming_times:The max roaming times to try (uint)
parm:           rtw_fw_iol:FW IOL (int)
parm:           rtw_mc2u_disable:int
parm:           rtw_80211d:Enable 802.11d mechanism (int)
parm:           rtw_notch_filter:0:Disable, 1:Enable, 2:Enable only for P2P (uint)
parm:           debug:Set debug level (1-9) (default 1) (int)
parm:           monitor_enable:Enable monitor inferface (default: false) (bool)

grep -R [[:graph:]] /sys/module/r8188eu/parameters

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/sys/module/r8188eu/parameters/rtw_chip_version:0
/sys/module/r8188eu/parameters/rtw_antdiv_cfg:2
/sys/module/r8188eu/parameters/rtw_cbw40_enable:3
/sys/module/r8188eu/parameters/rtw_hw_wps_pbc:1
/sys/module/r8188eu/parameters/rtw_rfintfs:2
/sys/module/r8188eu/parameters/debug:1
/sys/module/r8188eu/parameters/rtw_lbkmode:0
/sys/module/r8188eu/parameters/rtw_low_power:0
/sys/module/r8188eu/parameters/rtw_enusbss:0
/sys/module/r8188eu/parameters/rtw_rx_stbc:1
/sys/module/r8188eu/parameters/rtw_ampdu_enable:1
/sys/module/r8188eu/parameters/rtw_ampdu_amsdu:0
/sys/module/r8188eu/parameters/rtw_power_mgnt:1
/sys/module/r8188eu/parameters/rtw_channel_plan:66
/sys/module/r8188eu/parameters/rtw_antdiv_type:0
/sys/module/r8188eu/parameters/rtw_vcs_type:1
/sys/module/r8188eu/parameters/rtw_ips_mode:1
/sys/module/r8188eu/parameters/ifname:wlan%d
/sys/module/r8188eu/parameters/rtw_max_roaming_times:2
/sys/module/r8188eu/parameters/monitor_enable:N
/sys/module/r8188eu/parameters/rtw_fw_iol:1
/sys/module/r8188eu/parameters/rtw_busy_thresh:40
/sys/module/r8188eu/parameters/rtw_hwpdn_mode:2
/sys/module/r8188eu/parameters/rtw_ht_enable:1
/sys/module/r8188eu/parameters/rtw_wifi_spec:0
/sys/module/r8188eu/parameters/if2name:wlan%d
/sys/module/r8188eu/parameters/rtw_vrtl_carrier_sense:2
/sys/module/r8188eu/parameters/rtw_mc2u_disable:0
/sys/module/r8188eu/parameters/rtw_80211d:0
/sys/module/r8188eu/parameters/rtw_notch_filter:0
/sys/module/r8188eu/parameters/rtw_hwpwrp_detect:0
/sys/module/r8188eu/parameters/rtw_initmac:(null)
/sys/module/r8188eu/parameters/rtw_smart_ps:2
/sys/module/r8188eu/parameters/rtw_wmm_enable:1
/sys/module/r8188eu/parameters/rtw_channel:1
/sys/module/r8188eu/parameters/rtw_lowrate_two_xmit:1
/sys/module/r8188eu/parameters/rtw_network_mode:0
/sys/module/r8188eu/parameters/rtw_rf_config:5

sudo iwlist wlx64d1a3298306 scan

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wlx64d1a3298306  Scan completed :
          Cell 01 - Address: 64:59:F8:C9:EF:18
                    ESSID:"Vodafone-34240345"
                    Protocol:IEEE 802.11bgn
                    Mode:Master
                    Frequency:2.427 GHz (Channel 4)
                    Encryption key:on
                    Bit Rates:144 Mb/s
                    Extra:rsn_ie=30140100000fac040100000fac040100000fac020c00
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                    IE: Unknown: DD830050F204104A0001101044000102103B00010310470010448FC5AF8F47ED8E9323632D59295A65102100064875617765691023000F4F70656E524720506C6174666F726D10240007566F7820322E351042000F5731363037303030303930373236321054000800060050F2040001101100064F70656E5247100800020080103C000101
                    Quality=0/100  Signal level=2/100  
          Cell 02 - Address: 64:59:F8:C9:EF:1A
                    ESSID:"Vodafone-WiFi"
                    Protocol:IEEE 802.11bgn
                    Mode:Master
                    Frequency:2.427 GHz (Channel 4)
                    Encryption key:off
                    Bit Rates:144 Mb/s
                    Quality:0  Signal level:0  Noise level:0
          Cell 03 - Address: 00:1D:19:63:5E:E8
                    ESSID:"philips_install"
                    Protocol:IEEE 802.11bg
                    Mode:Master
                    Frequency:2.437 GHz (Channel 6)
                    Encryption key:on
                    Bit Rates:54 Mb/s
                    Extra:wpa_ie=dd1a0050f20101000050f20202000050f2020050f20401000050f202
                    IE: WPA Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : TKIP CCMP
                        Authentication Suites (1) : PSK
                    Extra:rsn_ie=30140100000fac020100000fac040100000fac020100
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                       Preauthentication Supported
                    Quality:0  Signal level:0  Noise level:0
          Cell 04 - Address: A4:B1:E9:D4:90:03
                    ESSID:"TNCAPD49003"
                    Protocol:IEEE 802.11bgn
                    Mode:Master
                    Frequency:2.462 GHz (Channel 11)
                    Encryption key:on
                    Bit Rates:130 Mb/s
                    Extra:wpa_ie=dd160050f20101000050f20201000050f20201000050f202
                    IE: WPA Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (1) : TKIP
                        Authentication Suites (1) : PSK
                    Extra:rsn_ie=30140100000fac020100000fac040100000fac020c00
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                    IE: Unknown: DD990050F204104A00011010440001021041000100103B000103104700108860390F16C458A78EC1026C9DA1A5041021000B546563686E69636F6C6F721023000E546563686E69636F6C6F72205447102400043538326E104200093133313456464856381054000800060050F204000110110012546563686E69636F6C6F722054473538326E100800020004103C0001011049000600372A000120
                    Quality:0  Signal level:0  Noise level:0
          Cell 05 - Address: 90:35:6E:BD:C4:78
                    ESSID:"Vodafone-Bergz"
                    Protocol:IEEE 802.11bgn
                    Mode:Master
                    Frequency:2.462 GHz (Channel 11)
                    Encryption key:on
                    Bit Rates:144 Mb/s
                    Extra:rsn_ie=30140100000fac040100000fac040100000fac020c00
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                    IE: Unknown: DD800050F204104A0001101044000102103B000103104700106EEA7AA2112718C978DB89EF7CF445F5102100034144421023000F4F70656E524720506C6174666F726D10240007566F7820322E351042000F4431343132303030303339333433301054000800060050F2040001101100064F70656E5247100800020080103C000101
                    Quality:0  Signal level:0  Noise level:0

[magozurlinux]

dmesg ! grep r8188eu

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    [   17.721054] r8188eu: module is from the staging directory, the quality is unknown, you have been warned.
    [   17.721451] r8188eu: module verification failed: signature and/or required key missing - tainting kernel

è il driver r8188eu che non funziona bene.

Da terminale dai questi comandi:

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sudo modprobe -r r8188eu

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sudo modprobe r8188eu rtw_power_mgnt=0

[cichymarck]

con questi ultimi comandi la connessione sembrava essere tornata massima, ma ora si alterna per periodi più o meno regolari tra "massima" e "minima come prima"

[cichymarck]

c'è qualche comando per una diagnostica? per vedere se il problema è risolto e magari è la connessione della vod.station?

[magozurlinux]

Un'altra strada è ricompilare il driver altrimenti aspetta @thece se ha altre soluzioni, un'altra prova che puoi fare è cambiare il canale 4 con 12 o 13 nel modem/router.

Connesso via cavo dai questi comandi, senza la chiavetta Sitecom:

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

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git clone https://github.com/lwfinger/rtl8188eu.git

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cd rtl8188eu

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make all

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sudo make install

inserisci la chiavetta Sitecom, prova la connessione.

Se tutto procede bene, per non stare sempre a ricompilare il driver ad ogni aggiornamento di kernel, da terminale dai questi comandi:

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sudo dkms add ./rtl8188eu

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sudo dkms build 8188eu/1.0

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sudo dkms install 8188eu/1.0

Anch'io ho un dongle wireless con chipset Realtek, driver rtl8188eu, per farla funzionare correttamente ho dato i suddetti comandi.

[thece]

Un'altra strada è ricompilare il driver altrimenti aspetta thece se ha altre soluzioni

Condivido le strade proposte da @magozurlinux: lavorare sui parametri del driver oppure provare a ricompilarlo