Gigabyte AirCruiser G (rt61) very unstable.

Live forum: http://rt2x00.serialmonkey.com/viewtopic.php?t=5242

Halsfluss

02-04-2009 11:32:25

Hi!

Been searching the web for quite some time in hope of finding a solution to my problem, but before I go down town to buy a card with another chip I thought; what the heck, might as well try and ask )

Don't know what information I need to supply, so I'll take it from the beginning.

[b1dkxj8hb]Background[/b1dkxj8hb]
I have in fact two WLAN-cards from Gigabyte, both using rt61, and both having the same issue.

[b1dkxj8hb]lspci[/b1dkxj8hb]
[code1dkxj8hb]01:09.0 Network controller: RaLink RT2561/RT61 rev B 802.11g[/code1dkxj8hb]

[b1dkxj8hb]lsmod | grep rt[/b1dkxj8hb][code1dkxj8hb]rt61pci 29572 0
crc_itu_t 10112 1 rt61pci
rt2x00pci 15616 1 rt61pci
rt2x00lib 37888 2 rt61pci,rt2x00pci
led_class 12036 1 rt2x00lib
mac80211 217208 2 rt2x00pci,rt2x00lib
cfg80211 38032 2 rt2x00lib,mac80211
eeprom_93cx6 10240 1 rt61pci
agpgart 42696 1 nvidia
parport_pc 40100 1
parport 42220 3 lp,ppdev,parport_pc
[/code1dkxj8hb]

[b1dkxj8hb]OS[/b1dkxj8hb] At the moment Ubuntu Jaunty (9.04 beta), but have had the same problem with earlier versions of Ubuntu and other distros as Debian and OpenSUSE as well.

I'm using WPA for security, and NetworkManager to connect. I have my computer in my living room, and the access point in my kitchen (and a hallway in between). NetworkManager usually says signal strength is around 78%, but sometimes falls down to around 30%. (btw I have a laptop and an netbook, both from acer that works perfectly in the spot where I have this computer).

[b1dkxj8hb]The Problem[/b1dkxj8hb]
Sometimes, not very often all is fine. I can download stuff around 7-800 kB/s meanwhile I surf at good speed. After a while the speed starts dropping until I'm around 0 kB/s. Firefox can't seem to get the pages (e.g. says "Opening http//www.google.com" for minutes).

Then the NetworkManager applet starts spinning like if I was connecting to a new access point. If I am lucky it manages to connect to my AP again, even though it can take minutes. If I'm not so lucky I have to reboot my computer.

How often this problem occurs varies alot. If I'm lucky I can surf at decent speeds (very rarely even great speeds) for a couple of hours without being disconnected. Normally I get disconnected perhaps a couple of times an hour. Today maybe 10 "Disconnected from <MY_ESSID>" in 45 minutes.

It's very annoying, and I usually end up using one of my portable computers instead.

[b1dkxj8hb]A typical dmesg when it keeps disconnecting looks something like this[/b1dkxj8hb]
[code1dkxj8hb][13930.822123] wlan1: associate with AP 00:01:38:89:f5:8d
[13930.827015] wlan1: RX ReassocResp from 00:01:38:89:f5:8d (capab=0x471 status=0 aid=2)
[13930.827018] wlan1: associated
[13934.830171] wlan1: deauthenticated
[13935.829046] wlan1: direct probe to AP 00:01:38:89:f5:8d try 1
[13936.029041] wlan1: direct probe to AP 00:01:38:89:f5:8d try 2
[13936.229028] wlan1: direct probe to AP 00:01:38:89:f5:8d try 3
[13936.429033] wlan1: direct probe to AP 00:01:38:89:f5:8d timed out
[13940.520830] wlan1: authenticate with AP 00:01:38:89:f5:8d
[13940.527335] wlan1: authenticated
[13940.527342] wlan1: associate with AP 00:01:38:89:f5:8d
[13940.730450] wlan1: associate with AP 00:01:38:89:f5:8d
[13940.932264] wlan1: associate with AP 00:01:38:89:f5:8d
[13941.129889] wlan1: association with AP 00:01:38:89:f5:8d timed out
[13944.617923] wlan1: deauthenticated
[13951.969074] wlan1: direct probe to AP 00:01:38:89:f5:8d try 1
[13951.972090] wlan1: direct probe to AP 00:01:38:89:f5:8d try 1
[13952.173032] wlan1: direct probe to AP 00:01:38:89:f5:8d try 2
[13952.373023] wlan1: direct probe to AP 00:01:38:89:f5:8d try 3
[13952.388943] wlan1 direct probe responded
[13952.388949] wlan1: authenticate with AP 00:01:38:89:f5:8d
[13952.589028] wlan1: authenticate with AP 00:01:38:89:f5:8d
[13952.789038] wlan1: authenticate with AP 00:01:38:89:f5:8d
[13952.989031] wlan1: authentication with AP 00:01:38:89:f5:8d timed out
[13969.881073] wlan1: authenticate with AP 00:01:38:89:f5:8d
[13969.881959] wlan1: authenticate with AP 00:01:38:89:f5:8d
[13969.895843] wlan1: authenticated
[13969.895850] wlan1: associate with AP 00:01:38:89:f5:8d
[13970.080577] wlan1: RX AssocResp from 00:01:38:89:f5:8d (capab=0x471 status=0 aid=2)
[13970.080581] wlan1: associated
[13978.077037] wlan1: No ProbeResp from current AP 00:01:38:89:f5:8d - assume out of range
[13979.634419] wlan1: authenticate with AP 00:01:38:89:f5:8d
[13979.637311] wlan1: authenticated
[13979.637318] wlan1: associate with AP 00:01:38:89:f5:8d
[13979.647314] wlan1: RX ReassocResp from 00:01:38:89:f5:8d (capab=0x471 status=0 aid=2)
[13979.647318] wlan1: associated
[13991.649229] wlan1: No ProbeResp from current AP 00:01:38:89:f5:8d - assume out of range
[13993.197106] wlan1: authenticate with AP 00:01:38:89:f5:8d
[13993.200127] wlan1: authenticate with AP 00:01:38:89:f5:8d
[13993.397043] wlan1: authenticate with AP 00:01:38:89:f5:8d
[13993.597070] wlan1: authenticate with AP 00:01:38:89:f5:8d
[13993.797039] wlan1: authentication with AP 00:01:38:89:f5:8d timed out
[14004.649206] wlan1: authenticate with AP 00:01:38:89:f5:8d
[14004.849033] wlan1: authenticate with AP 00:01:38:89:f5:8d
[14004.855207] wlan1: authenticated
[14004.855211] wlan1: associate with AP 00:01:38:89:f5:8d
[14005.052170] wlan1: associate with AP 00:01:38:89:f5:8d
[14005.253023] wlan1: associate with AP 00:01:38:89:f5:8d
[14005.453043] wlan1: association with AP 00:01:38:89:f5:8d timed out
[14008.908518] wlan1: deauthenticated
[14016.109074] wlan1: authenticate with AP 00:01:38:89:f5:8d
[14016.112122] wlan1: authenticate with AP 00:01:38:89:f5:8d
[14016.313410] wlan1: authenticate with AP 00:01:38:89:f5:8d
[14016.513021] wlan1: authenticate with AP 00:01:38:89:f5:8d
[14016.713029] wlan1: authentication with AP 00:01:38:89:f5:8d timed out
[14066.651114] wlan1: authenticate with AP 00:01:38:89:f5:8d
[14066.655725] wlan1: authenticated
[14066.655731] wlan1: associate with AP 00:01:38:89:f5:8d
[14066.658804] wlan1: RX AssocResp from 00:01:38:89:f5:8d (capab=0x471 status=0 aid=2)
[14066.658807] wlan1: associated
[/code1dkxj8hb]

Sometimes I also see a line in dmesg that says something like "Disconnected by local choice (=3)" or similar.

[b1dkxj8hb]iwlist scan[/b1dkxj8hb]
[code1dkxj8hb]wlan1 Scan completed :
Cell 01 - Address: 00:01:38:89:F5:8D
ESSID:"XXXXXXXXXX"
Mode:Master
Channel:11
Frequency:2.462 GHz (Channel 11)
Quality=56/100 Signal level:-72 dBm
Encryption key:on
IE: Unknown: 000D42325F707269766174655F4239
IE: Unknown: 010582848B962C
IE: Unknown: 03010B
IE: Unknown: 2A0103
IE: Unknown: 32080C1218243048606C
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (1) : TKIP
Authentication Suites (1) : PSK
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 22 Mb/s
6 Mb/s; 9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s
36 Mb/s; 48 Mb/s; 54 Mb/s
Extra:tsf=000000134f9761c5
Extra: Last beacon: 96ms ago[/code1dkxj8hb]

Anyone who has any suggestions on what to do? Please post questions or if more info is needed.

Thanks //Magnus

IvD

02-04-2009 12:03:28

Could you go to linuxwireless.org and download the compat-wireless package?
That contains a more recent version of the driver with lots of fixes, I'm not sure but perhaps there is a similar package in the Ubuntu unstable repository.

Halsfluss

02-04-2009 12:38:57

Could you go to linuxwireless.org and download the compat-wireless package?
That contains a more recent version of the driver with lots of fixes, I'm not sure but perhaps there is a similar package in the Ubuntu unstable repository.[/quote3k4nap2i]

Thanks for your quick response.

Trying this, taken from linuxwireless.org;
[code3k4nap2i]
Getting compat-wireless on Ubuntu
With Ubuntu you have the option of either installing compat-wireless yourself or of installing the package that provides it built by the Ubuntu kernel team. The Ubuntu package that carries compat-wireless is called linux-backport-modules and it has more backported modules than just your wireless subsystem. Its updated whenever major updates are pushed out into the wireless-testing git tree.

# For Ubuntu 8.10 Intrepid users:
sudo apt-get install linux-backports-modules-intrepid

# For Ubuntu 9.04 Jaunty users:
sudo apt-get install linux-backports-modules-jaunty

Please note that if you are installing linux-backports-modules-intrepid and you later decide to install compat-wireless by building it by yourself you are highly encouraged you first remove linux-backports-modules-intrepid first otherwise you can run into module dependency conflicts.[/code3k4nap2i]

~ 1.2MB to download, and it's been going on for minutes. And I've got 24Mbit ADSL internet connection D

IvD

02-04-2009 12:42:32

That might be related to another issue, try forcing the bitrate to 54M
[code141j1d53]iwconfig wlan0 rate 54M[/code141j1d53]

this is a workaround and forces the interface to maximum throughput, it is not perfect but unfortunately that issue has not been resolved yet. However the workaround is in this issue easy. ;)

Halsfluss

02-04-2009 13:12:22

That might be related to another issue, try forcing the bitrate to 54M
[code1z6cecqd]iwconfig wlan0 rate 54M[/code1z6cecqd]

this is a workaround and forces the interface to maximum throughput, it is not perfect but unfortunately that issue has not been resolved yet. However the workaround is in this issue easy. ;)[/quote1z6cecqd]

Actually I tried the iwconfig command you mentioned earlier today. The only difference I've experienced is that "Speed" in NetworkManager has been jumping between 11->54Mb/s (before it was almost always 1Mb/s, and occasionally it jumped up to 8-11Mb/s).

It doesn't seem to have improved any actual speed though. Still slow as hell (a couple of kB/s with an occasional rush up to around 200 kB/s and then down again). I have rebooted since I did the install. It's been to short to draw any conclusions based on this short time, but the problem with falling speed to around 0 kB/s seems to still be there. No disconnections yet though, but as I mentioned earlier; when it worked as best it worked for a couple of hours.

Perhaps not relevant, but I took a couple of screens of my system monitor (meanwhile I was downloading an ISO from ubuntus swedish servers, would probably have around 1-1.2MB/s if I connected with my ethernet cable).

[img1z6cecqd]http://pici.se/pictures/tdylRDugm.jpg[/img1z6cecqd]

[img1z6cecqd]http://pici.se/pictures/xYSdHEGUy.jpg[/img1z6cecqd]

This would be quite common values for my WLAN connection (with this card).