[PLUG] Strange behavior with Wifi USB adapter

[Bruce KIlpatrick]

VY wrote:
> Hi :
> 
> I have a Linksys Wireless-G USB adapter (Model WUSB54GC) which I use to
> connect to a wifi router at work for
> connectivity.  It is DHCP and works fine most of the time.  Every now then,
> after a long usage especially, it will disconnect
> from the router itself.  In fact, it seems that the USB adapter is not
> functional anymore even though the green light on it is still lit.
> If I unplug and plug it back it, green light is lit, wlan0 shows as "UP" in
> ifconfig but I do not receive any address.
> 
> I look at /var/log/message (included below), it would just say wlan0: link
> is not ready.  The network-monitor GUI says wlan0 is invalid.  If I wait a
> day or two, the USB adapter will start working again.
> 
> Can anyone offer clues to explain this very odd behavior?  I borrowed
> another adapter from my sister (same model) and
> the same thing would happen over time.  I uses 2 different boxes (kernel
> 2.6.27 and 2.6.28) and the same thing happened on both boxes.
> 
> 
> May  7 16:07:28 vdesktop kernel: [624515.252024] usb 1-4: new high speed USB
> device using ehci_hcd and address 56
> May  7 16:07:28 vdesktop kernel: [624515.579410] usb 1-4: configuration #1
> chosen from 1 choice
> May  7 16:07:29 vdesktop kernel: [624516.124779] Registered led device:
> rt73usb-phy0:radio
> May  7 16:07:29 vdesktop kernel: [624516.125600] Registered led device:
> rt73usb-phy0:assoc
> May  7 16:07:29 vdesktop kernel: [624516.126329] Registered led device:
> rt73usb-phy0:quality
> May  7 16:07:29 vdesktop kernel: [624516.127495] usbcore: registered new
> interface driver rt73usb
> May  7 16:07:33 vdesktop kernel: [624520.500521] firmware: requesting
> rt73.bin
> May  7 16:07:33 vdesktop kernel: [624520.594335] ADDRCONF(NETDEV_UP): wlan0:
> link is not ready
> 
> 
> --Vincent
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> 
We had the same problem here with that model.  We guessed it to be a 
heat issue, but don't really have any way to confirm that.  I wired the 
room for ethernet and solved the problem.

Good to know that we weren't the only one having issues with it.

Bruce