WiFi Woes ... 2 x Linux : Belkin + LinkSys

Situacija:
1. v hiši imam dva WiFi routerja: en linksys cca 20m oddaljen od mene nadstropje nižje in en Belkin cca 15m ddaljen odmene v mojem nadstropju. Routerja sta povezana s kablom.
2. imam dva računalnika z enakim operacijskim sistemom Pardus Linux (KDE). Prvi je Asus Netbook z Atheros WiFi čipsetom, drugi je pa stacionarc z RaLink pci WiFi kartico. Oba routerja in oba WiFi vmesnika podpirata N standard

Problem: očitno je omrežje katerega gor drži belkin na moji lokaciji precej močnejše kot omrežje LinkSysa. Netbook se v njega poveže b.p., signal je stabilen, praktično vedno dela. Stacionarc pa nikakor ne pride v njega. Zazna ga, zahteva password vendar se cikla v dekodiranju, znova in znova zahteva vpis gesla. To isto geslo na netbooku deluje b.p.

Ne, nimam vklopljeno filtriranje MAC naslovov na belkinu.

Signal od linksysa je na meji uporabnosti in mi konstantno pije živce. Praktično nonstop ga meče ven. iwlist scan zanj pravi da ma signala -88dB, šuma pa -87dB.
Belkinova mreža ma trenutno -80dB signala in istih -87dB šuma.
Bistveno bolje, če bi se le uspel povezat.

Kakšna ideja kako ugotovit kaj mu ne paše?

Torej nobene ideje kaj sploh pogledat... ?

Baci u smeče, med sebi enake?

wpa_supplicant.log je zelo redkobeseden:

Trying to associate with 00:22:75:e7:93:85 (SSID='belkin' freq=2412 MHz)
Authentication with 00:22:75:e7:93:85 timed out.
Trying to associate with 00:22:75:e7:93:85 (SSID='belkin' freq=2412 MHz)
Authentication with 00:22:75:e7:93:85 timed out.

Dvakrat sm posksu, dvakrat je reku vrgu time out, kar gre skupaj z obnašanjem - nucca cca 10 sekund da zahteva drug password. Password je 100% pravi.

syslog pravi mal več:

Jun 21 19:20:25 localhost NetworkManager[710]: <info> (wlan0): supplicant connection state:  associating -> disconnected
Jun 21 19:20:25 localhost NetworkManager[710]: <info> (wlan0): supplicant connection state:  disconnected -> scanning
Jun 21 19:20:26 localhost NetworkManager[710]: <warn> Activation (wlan0/wireless): association took too long.
Jun 21 19:20:26 localhost NetworkManager[710]: <info> (wlan0): device state change: 5 -> 6 (reason 0)
Jun 21 19:20:26 localhost NetworkManager[710]: <warn> Activation (wlan0/wireless): asking for new secrets
Jun 21 19:20:26 localhost NetworkManager[710]: <info> (wlan0): supplicant connection state:  scanning -> disconnected
Jun 21 19:20:30 localhost kernel: [ 4661.372203] ===>rt_ioctl_giwscan. 5(5) BSS returned, data->length = 951
Jun 21 19:20:33 localhost NetworkManager[710]: <warn> Failed to update connection secrets: 1 802-1x
Jun 21 19:20:33 localhost NetworkManager[710]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) scheduled...
Jun 21 19:20:33 localhost NetworkManager[710]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) started...
Jun 21 19:20:33 localhost NetworkManager[710]: <info> (wlan0): device state change: 6 -> 4 (reason 0)
Jun 21 19:20:33 localhost NetworkManager[710]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) scheduled...
Jun 21 19:20:33 localhost NetworkManager[710]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) complete.
Jun 21 19:20:33 localhost NetworkManager[710]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) starting...
Jun 21 19:20:33 localhost NetworkManager[710]: <info> (wlan0): device state change: 4 -> 5 (reason 0)
Jun 21 19:20:33 localhost NetworkManager[710]: <info> Activation (wlan0/wireless): connection 'belkin' has security, and secrets exist.  No new secrets needed.
Jun 21 19:20:33 localhost NetworkManager[710]: <info> Config: added 'ssid' value 'belkin'
Jun 21 19:20:33 localhost NetworkManager[710]: <info> Config: added 'scan_ssid' value '1'
Jun 21 19:20:33 localhost NetworkManager[710]: <info> Config: added 'key_mgmt' value 'WPA-PSK'
Jun 21 19:20:33 localhost NetworkManager[710]: <info> Config: added 'psk' value '<omitted>'
Jun 21 19:20:33 localhost NetworkManager[710]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) complete.
Jun 21 19:20:33 localhost NetworkManager[710]: <info> Config: set interface ap_scan to 1
Jun 21 19:20:33 localhost NetworkManager[710]: <info> (wlan0): supplicant connection state:  disconnected -> scanning
Jun 21 19:20:38 localhost NetworkManager[710]: <info> (wlan0): supplicant connection state:  scanning -> associating
Jun 21 19:20:38 localhost kernel: [ 4669.711981] ===>rt_ioctl_giwscan. 4(4) BSS returned, data->length = 717
Jun 21 19:20:38 localhost kernel: [ 4669.712127] ==>rt_ioctl_siwfreq::SIOCSIWFREQ[cmd=0x8b04] (Channel=1)
Jun 21 19:20:58 localhost NetworkManager[710]: <info> (wlan0): supplicant connection state:  associating -> disconnected
Jun 21 19:20:58 localhost NetworkManager[710]: <info> (wlan0): supplicant connection state:  disconnected -> scanning
Jun 21 19:20:59 localhost NetworkManager[710]: <warn> Activation (wlan0/wireless): association took too long.
Jun 21 19:20:59 localhost NetworkManager[710]: <info> (wlan0): device state change: 5 -> 6 (reason 0)
Jun 21 19:20:59 localhost NetworkManager[710]: <warn> Activation (wlan0/wireless): asking for new secrets
Jun 21 19:20:59 localhost NetworkManager[710]: <info> (wlan0): supplicant connection state:  scanning -> disconnected
Jun 21 19:21:03 localhost kernel: [ 4694.723804] ===>rt_ioctl_giwscan. 4(4) BSS returned, data->length = 775
Jun 21 19:21:12 localhost NetworkManager[710]: <info> (wlan0): device state change: 6 -> 9 (reason 7)
Jun 21 19:21:12 localhost NetworkManager[710]: <warn> Activation (wlan0) failed for access point (belkin)
Jun 21 19:21:12 localhost NetworkManager[710]: <info> Marking connection 'belkin' invalid.
Jun 21 19:21:12 localhost NetworkManager[710]: <warn> Activation (wlan0) failed.
Jun 21 19:21:12 localhost NetworkManager[710]: <info> (wlan0): device state change: 9 -> 3 (reason 0)
Jun 21 19:21:12 localhost NetworkManager[710]: <info> (wlan0): deactivating device (reason: 0).
Jun 21 19:21:12 localhost NetworkManager[710]: <info> (wlan0): reset MAC address to 00:00:00:00:00:00
Jun 21 19:21:12 localhost kernel: [ 4703.791344] RX DESC ffff8800a281d000  size = 2048
Jun 21 19:21:12 localhost kernel: [ 4703.791473] <-- RTMPAllocTxRxRingMemory, Status=0
Jun 21 19:21:12 localhost kernel: [ 4703.793559] 1. Phy Mode = 0
Jun 21 19:21:12 localhost kernel: [ 4703.793560] 2. Phy Mode = 0
Jun 21 19:21:12 localhost kernel: [ 4703.810633] 3. Phy Mode = 0
Jun 21 19:21:12 localhost kernel: [ 4703.813338] MCS Set = 00 00 00 00 00
Jun 21 19:21:12 localhost kernel: [ 4703.814893] <==== rt28xx_init, Status=0
Jun 21 19:21:12 localhost kernel: [ 4703.814955] 0x1300 = 000a4200
Jun 21 19:21:16 localhost NetworkManager[710]: <info> Activation (wlan0) starting connection 'linksys'
Jun 21 19:21:16 localhost NetworkManager[710]: <info> (wlan0): device state change: 3 -> 4 (reason 0)
Jun 21 19:21:16 localhost NetworkManager[710]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) scheduled...
Jun 21 19:21:16 localhost NetworkManager[710]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) started...
Jun 21 19:21:16 localhost NetworkManager[710]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) scheduled...
Jun 21 19:21:16 localhost NetworkManager[710]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) complete.
Jun 21 19:21:16 localhost NetworkManager[710]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) starting...
Jun 21 19:21:16 localhost NetworkManager[710]: <info> (wlan0): device state change: 4 -> 5 (reason 0)
Jun 21 19:21:16 localhost NetworkManager[710]: <info> Activation (wlan0/wireless): connection 'linksys' has security, and secrets exist.  No new secrets needed.
Jun 21 19:21:16 localhost NetworkManager[710]: <info> Config: added 'ssid' value 'linksys'
Jun 21 19:21:16 localhost NetworkManager[710]: <info> Config: added 'scan_ssid' value '1'
Jun 21 19:21:16 localhost NetworkManager[710]: <info> Config: added 'key_mgmt' value 'WPA-PSK'
Jun 21 19:21:16 localhost NetworkManager[710]: <info> Config: added 'psk' value '<omitted>'
Jun 21 19:21:16 localhost NetworkManager[710]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) complete.
Jun 21 19:21:16 localhost NetworkManager[710]: <info> Config: set interface ap_scan to 1
Jun 21 19:21:16 localhost NetworkManager[710]: <info> (wlan0): supplicant connection state:  disconnected -> scanning
Jun 21 19:21:21 localhost kernel: [ 4712.021989] ===>rt_ioctl_giwscan. 3(3) BSS returned, data->length = 574
Jun 21 19:21:21 localhost NetworkManager[710]: <info> (wlan0): supplicant connection state:  scanning -> associating
Jun 21 19:21:21 localhost kernel: [ 4712.022140] ==>rt_ioctl_siwfreq::SIOCSIWFREQ[cmd=0x8b04] (Channel=1)
Jun 21 19:21:21 localhost NetworkManager[710]: <info> (wlan0): supplicant connection state:  associating -> associated
Jun 21 19:21:21 localhost NetworkManager[710]: <info> (wlan0): supplicant connection state:  associated -> 4-way handshake
Jun 21 19:21:21 localhost NetworkManager[710]: <info> (wlan0): supplicant connection state:  4-way handshake -> group handshake
Jun 21 19:21:21 localhost NetworkManager[710]: <info> (wlan0): supplicant connection state:  group handshake -> completed
Jun 21 19:21:21 localhost NetworkManager[710]: <info> Activation (wlan0/wireless) Stage 2 of 5 (Device Configure) successful.  Connected to wireless network 'linksys'.
Jun 21 19:21:21 localhost NetworkManager[710]: <info> Activation (wlan0) Stage 3 of 5 (IP Configure Start) scheduled.

Enako slabo i.e. sploh ne.

MOgoče kej pomaga - ob prekinitvi uspešne povezave z linksysom, javi:

Jun 21 19:19:59 localhost NetworkManager[710]: <info> (wlan0): device state change: 8 -> 3 (reason 0)
Jun 21 19:19:59 localhost NetworkManager[710]: <info> (wlan0): deactivating device (reason: 0).
Jun 21 19:19:59 localhost dhcpcd[954]: received SIGTERM, stopping
Jun 21 19:19:59 localhost dhcpcd[954]: wlan0: removing interface
Jun 21 19:19:59 localhost avahi-daemon[697]: Withdrawing address record for 192.168.1.101 on wlan0.
Jun 21 19:19:59 localhost avahi-daemon[697]: Leaving mDNS multicast group on interface wlan0.IPv4 with address 192.168.1.101.
Jun 21 19:19:59 localhost avahi-daemon[697]: Interface wlan0.IPv4 no longer relevant for mDNS.
Jun 21 19:19:59 localhost NetworkManager[710]: <info> (wlan0): canceled DHCP transaction, DHCP client pid 954
Jun 21 19:19:59 localhost kernel: [ 4630.692578] ERROR! H2M_MAILBOX still hold by MCU. command fail
Jun 21 19:19:59 localhost kernel: [ 4630.692771] ERROR! BBP read R1=0xffffffff fail
Jun 21 19:19:59 localhost kernel: [ 4630.692948] ERROR! BBP write R1=0xffffffff fail. BusyCnt= 100.bPCIclkOff = 0. 
Jun 21 19:19:59 localhost NetworkManager[710]: <info> (wlan0): reset MAC address to 00:00:00:00:00:00
Jun 21 19:19:59 localhost kernel: [ 4630.697136] RX DESC ffff88008c6fa000  size = 2048
Jun 21 19:19:59 localhost kernel: [ 4630.697235] <-- RTMPAllocTxRxRingMemory, Status=0
Jun 21 19:19:59 localhost kernel: [ 4630.699285] 1. Phy Mode = 0
Jun 21 19:19:59 localhost kernel: [ 4630.699286] 2. Phy Mode = 0
Jun 21 19:19:59 localhost kernel: [ 4630.715669] 3. Phy Mode = 0
Jun 21 19:19:59 localhost kernel: [ 4630.718470] MCS Set = 00 00 00 00 00
Jun 21 19:19:59 localhost kernel: [ 4630.720033] <==== rt28xx_init, Status=0
Jun 21 19:19:59 localhost kernel: [ 4630.720095] 0x1300 = 000a4200

Password: 
touch: cannot touch `/etc/Wireless/RT2860STA/RT2860STA.dat': Permission denied
Unable to stop network_manager:
  Unable to find '/var/db/comar3/scripts/System.Service/network_manager.py'
Unable to start network_manager:
  Unable to find '/var/db/comar3/scripts/System.Service/network_manager.py'

Pass za sudota je bilo pravilno.

menjavanje kanalov ne pomaga

00:00.0 Host bridge: Intel Corporation 82G33/G31/P35/P31 Express DRAM Controller (rev 02)
00:01.0 PCI bridge: Intel Corporation 82G33/G31/P35/P31 Express PCI Express Root Port (rev 02)
00:1a.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #4 (rev 02)
00:1a.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #5 (rev 02)
00:1a.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #6 (rev 02)
00:1a.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #2 (rev 02)
00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 02)
00:1c.0 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 1 (rev 02)
00:1c.4 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 5 (rev 02)
00:1c.5 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 6 (rev 02)
00:1d.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1 (rev 02)
00:1d.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2 (rev 02)
00:1d.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3 (rev 02)
00:1d.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1 (rev 02)
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev 92)
00:1f.0 ISA bridge: Intel Corporation 82801IR (ICH9R) LPC Interface Controller (rev 02)
00:1f.2 IDE interface: Intel Corporation 82801IR/IO/IH (ICH9R/DO/DH) 4 port SATA IDE Controller (rev 02)
00:1f.3 SMBus: Intel Corporation 82801I (ICH9 Family) SMBus Controller (rev 02)
00:1f.5 IDE interface: Intel Corporation 82801I (ICH9 Family) 2 port SATA IDE Controller (rev 02)
01:00.0 VGA compatible controller: ATI Technologies Inc RV770 [Radeon HD 4850]
01:00.1 Audio device: ATI Technologies Inc HD48x0 audio
02:00.0 Ethernet controller: Marvell Technology Group Ltd. 88E8056 PCI-E Gigabit Ethernet Controller (rev 12)
03:00.0 IDE interface: Marvell Technology Group Ltd. 88SE6101/6102 single-port PATA133 interface (rev b2)
05:01.0 Multimedia audio controller: C-Media Electronics Inc CM8738 (rev 10)
05:02.0 Network controller: Ralink corp. RT2800 802.11n PCI

Izklop linksysa ni opcija, žal.

lsmod | grep rt:

gameport                9621  1 snd_cmipci
snd_mpu401_uart         5825  1 snd_cmipci
snd_rawmidi            20159  1 snd_mpu401_uart
snd                    63018  18 snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_intel,snd_cmipci,snd_hda_codec,snd_seq_oss,snd_seq,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_opl3_lib,snd_hwdep,snd_mpu401_uart,snd_rawmidi,snd_timer,snd_seq_device
rt2860sta             454111  1 
crc_ccitt               1667  1 rt2860sta

lspci -v:

05:02.0 Network controller: Ralink corp. RT2800 802.11n PCI
        Subsystem: Linksys Device 0067
        Flags: bus master, slow devsel, latency 64, IRQ 18
        Memory at febf0000 (32-bit, non-prefetchable) [size=64K]
        Capabilities: [40] Power Management version 3
        Kernel driver in use: rt2860
        Kernel modules: rt2860sta

Kernel 2.6.37.6

module-compat-wireless nameščen
lspci -v:

05:02.0 Network controller: Ralink corp. RT2800 802.11n PCI
        Subsystem: Linksys Device 0067
        Flags: bus master, slow devsel, latency 64, IRQ 18
        Memory at febf0000 (32-bit, non-prefetchable) [size=64K]
        Capabilities: <access denied>
        Kernel driver in use: rt2860
        Kernel modules: rt2800pci, rt2860sta

lsmod | grep rt

rt2800pci              10084  0 
rt2800lib              43913  1 rt2800pci
rt2x00pci               6973  1 rt2800pci
rt2x00lib              42993  3 rt2800pci,rt2800lib,rt2x00pci
mac80211              239115  3 rt2800lib,rt2x00pci,rt2x00lib
gameport                9621  1 snd_cmipci
cfg80211              173397  2 rt2x00lib,mac80211
eeprom_93cx6            1948  1 rt2800pci
rt2860sta             454111  1 
snd_mpu401_uart         5825  1 snd_cmipci
snd_rawmidi            20159  1 snd_mpu401_uart
snd                    63018  18 snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_cmipci,snd_seq_oss,snd_seq,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_opl3_lib,snd_timer,snd_hwdep,snd_mpu401_uart,snd_rawmidi,snd_seq_device
crc_ccitt               1667  2 rt2800lib,rt2860sta

Storjeno, lspci -v:

05:02.0 Network controller: Ralink corp. RT2800 802.11n PCI
        Subsystem: Linksys Device 0067
        Flags: bus master, slow devsel, latency 64, IRQ 18
        Memory at febf0000 (32-bit, non-prefetchable) [size=64K]
        Capabilities: [40] Power Management version 3
        Kernel driver in use: rt2800pci
        Kernel modules: rt2800pci, rt2860sta

Deluje slabše - omrežja najde, ne poveže pa se več z nobenim, znova in znova zahteva password.
Nazaj sem aktiviral rt2860sta, ki se poveže vsaj z linksysom in lahk tole napišem.

sudo modprobe -r rt2860sta
sudo modprobe -r rt2800pci
sudo modprobe rt2800pci nohwcrypt=1

Če ne bo nič drugače vpiši na konec v:

/etc/modprobe.d/blacklist.conf

blacklist rt2860sta

Verjetno je to pravo mesto na Pardus. Potem znova zaženi računalnik in preveri:

lspci -v

Če je na voljo in v uporabi le rt2800pci. Če ne bo delovalo še preizkusi:

sudo modprobe -r rt2800pci
sudo modprobe rt2800pci nohwcrypt=1

Če ne bo rezultata bo treba o vsem skupaj ponovno razmisliti, ker če sem sam zadevo razumel pravilno je bila težava, da se brezžična kartica noče sploh povezati sedaj pa če prav razberem temu sploh ni tako ampak se poveže ampak ne z obema usmerjevalnikoma? Potem je morda vso to razmišljanje okrog gonilnika "overkill", ampak OK vseeno poskusi kar sem napisal in pa na koncu, ko bo v uporabi rt2800pci po ponovnem zagonu, oziroma že pred njim izbriši obstoječo povezavo in jo po ponovnem zagonu ustvari na novo!

sudo modprobe rt2800pci nohwcrypt=1

Tole povzroči, da sploh ne najde več nobenega omrežja.

Mislim, da se bil v prvem postu dovolj jasen: najde dvoje omrežij, poveže se le v tisto s slabšim signalom in posledično zelo pogosto prekinja povezavo. Povezava z močnejšim omrežjem pa nikakor ne uspe - znova in znova zahteva geslo.

Mislim, da se bil v prvem postu dovolj jasen: najde dvoje omrežij, poveže se le v tisto s slabšim signalom in posledično zelo pogosto prekinja povezavo. Povezava z močnejšim omrežjem pa nikakor ne uspe - znova in znova zahteva geslo.

No saj to z gonilnikom bi lahko bila ena možnih rešitev in verjetno je zadeva še vedno povezana s gonilnikom, ampak torej ne deluje, kvečjemu preveri še enkrat, če izključiš na usmerjevalniku zaščito in se skušaš povezati po:

sudo ifconfig wlan0 down
sudo modprobe -r rt2860sta
sudo modprobe -r rt2800pci
sudo modprobe rt2800pci
sudo ifconfig wlan0 up

Če se torej poveže ali ne.

Iskreno povedano sva najverjetneje lažje možnosti izčrpala, ker vem da nad kakšnimi bolj konkretnimi posegi pa nisi najbolj navdušen.

Odstrani torej sledeč paket:

module-compat-wireless

In vnos blacklist rt2860sta v datoteki:

/etc/modprobe.d/blacklist.conf

In znova zaženi računalnik. Sedaj boš verjetno spet na stanju iz začetka teme.

Lahko bi se preizkusilo še s prevajanjem lastniškega gonilnika ali uporabo novejšega gonilnika, ki ga boš privzeto uporabljal v prihodnosti, kjer bi rezultat morda bil možnost povezave na oba usmerjevalnika ali vsaj bolj stabilna povezava s tistim na katerega se poveže. Bom še razmislil, če bo se tema nadaljevala kaj o drugih možnostih trenutno se ne spomnim nič pametnega.

P.S. Razen morda začasna izključitev oddajnika na LinkSys in poskus vzpostavitve povezave s Belkin z obema gonilnikoma, ki ju še trenutno imaš na voljo, torej po novem zagonu računalnika in novo ustvarjeni povezavi.

Verjetno ima nekoliko novejše jedro in verjetno je v uporabi gonilnik rt2800pci?

lsmod | grep rt

Kakorkoli lepo da si uredil in distribucije tam okrog Linux jedra 3.3+ predvidevam da znajo privzeto izrabljati omenjeno strojno opremo, kvečjemu sedaj preveri še stabilnost povezave (torej nekaj ur uporabe), ker morda če je jedro tam okrog 3.3 ali nižje, še morda kakšna desetinka manjka do out-of-the-box stabilne povezave.

Super, če bo šlo tako naprej boš še kje preizkusil Ubuntu 12.10. ;)

Kakorkoli uživaj v hitrosti!