Linksys WUSB54Gv4 disconnects after a while on Lucid

[meithan]

Solution: This problem is fixed in the upcoming kernel, 2.6.34. You can either wait until Canonical releases the update, or download, build and install the 2.6.34 kernel manually. The instructions to do so are HERE. It's fairly easy.

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I'm having a problem on Lucid (amd64) with a Linksys WUSB54Gv4 usb wifi adapter.

After some time (varies between ~10 mins to a few hours), the connection is lost. However, in my case I can't connect back. It tries to establish the connection, then pops up the dialog asking for the WEP key again. It will do this repeatedly, not ever connecting back.

This is basically how the disconnect looks in dmesg:

[ 2657.920014] phy0 -> rt2500usb_set_device_state: Error - Device failed to ente
r state 1 (-16).
[ 2658.120008] phy0 -> rt2500usb_set_device_state: Error - Device failed to enter state 3 (-16).
[ 2658.620152] phy0 -> rt2500usb_set_device_state: Error - Device failed to enter state 3 (-16).
[ 2659.820014] phy0 -> rt2500usb_set_device_state: Error - Device failed to enter state 3 (-16).
[ 2660.240014] phy0 -> rt2500usb_set_device_state: Error - Device failed to enter state 3 (-16).
[ 2662.740011] No probe response from AP 00:1e:c7:27:2c:b1 after 500ms, disconnecting.

My temporary solution so far has been to manually unload and reload the rt2500usb module in the kernel:

sudo modprobe -r rt2500usb
sudo modprobe rt2500usb

After that I can connect on the first retry.

I tried installing the linux-backports-modules-wireless-lucid-generic package, to no gain.

I'll try installing the rt2570usb or RT73 drivers later, see if that solves the issue.

Some more info:

$ lsusb | grep Linksys
Bus 002 Device 004: ID 13b1:000d Linksys WUSB54G Wireless Adapter

$ lsmod | grep "rt.*usb"
rt2500usb              19014  0 
rt2x00usb              11243  1 rt2500usb
rt2x00lib              31500  2 rt2500usb,rt2x00usb
mac80211              243373  2 rt2x00usb,rt2x00lib

[udippel]

I'm having a problem on Lucid (amd64) with a Linksys WUSB54Gv4 usb wifi adapter.

After some time (varies between ~10 mins to a few hours), the connection is lost. However, in my case I can't connect back. It tries to establish the connection, then pops up the dialog asking for the WEP key again. It will do this repeatedly, not ever connecting back.

My temporary solution so far has been to manually unload and reload the rt2500usb module in the kernel:

No need to fiddle with the modules. The archives of the last days are full of this. Maybe the differences are minor only: I have the same here with an Atheros card (ath5k). Let me take a guess: If you are the only user, and low transfer rate, you'll stay connected for eternity. Once you do a bulk transfer over the Linksys, you'll be out within less than a minute. Correct?

Uwe

[meithan]

Well, it seems more random than that in my case. I'm barely doing anything right now (browsing a few websites, chatting on Pidgin) and I'm getting disconnects.

Is there any 'main' thread I should be looking at regarding this issue? I couldn't find a generic thread about it in the first few pages of the forum.

[necromonger]

I have the same problem.

[necromonger]

nothing on launchpad either.

[meithan]

If your wifi adapter is WUSB54GC, then the fix seems to be to blacklist the rt2500usb driver; see the following thread.

http://ubuntuforums.org/showthread.php?p=9236202

I haven't tried that for my adapter (which is WUSB54G - without the final C), because it has a different radio chip, but I guess trying that couldn't hurt too much (if it doesn't fix it, you can simply un-blacklist it).