Douglas Atique wrote:
> I have just installed the ath 0.5 driver on my Toshiba notebook with
> an internal Atheros 802.11g adapter. The driver attaches flawlessly
> and the wificonfig utility is able to scan and connect to WPA
> networks just perfectly. However, when I plumb the interface and get
> myself an IP address from a DHCP server on that network, it works for
> a while and then the router seems to stop responding.
> 
> Doing a snoop -d ath0 in the beginning shows normal network activity,
> but then starts displaying only the requests and no responses at all.
> At first I thought it could be a problem with the wifi router or with
> the wpa_supplicant daemon, but everything seems fine. wpa_supplicant
> even reconnects automatically when I reboot the wifi router.
> 
> At last, I found that only releasing the DHCP address and getting it
> again solves the problem for another, say, 10 minutes. Now I am
> suspecting that dhcpagent is unable to deal with possible WiFi signal
> loss and temporary WiFi-level network tear down. Could that be the
> case?
> 

Unlikely.  dhcpagent typically will have nothing to do within that time 
period after obtaining a lease.  What does "netstat -D" say when you're 
in that state?

More likely you've got some hardware-level issue, or maybe wpa is 
getting confused.  I'd start taking those out of the mix first and see 
if it works without the extra complications.

Dave

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