Daniel Carosone a écrit :

> Anyway, now I often stop receiving traffic pretty shortly after
> bringing up the interface.  Last night, after a few such cycles, it
> seemed to stick and lasted for the rest of the evening. Tonight, it
> hasn't yet done that (which has helped me test more :)
> 
> I do NOT see the link state DOWN/UP messages that would indicate the
> card had disassociated - at least not until I manually force it with
> "ifconfig ath0 down up".  There's also no other AP around to cause
> congestion; nobody else's beacon frames visible.
> This kinda suggests to me that the ping packets are being transmitted
> correctly - just the replies are not being received, and not being
> 802.11-ACKed to the AP, where they're being buffered until the card is
> tickled correctly.  I just confirmed that at the receiver: it is still

I completly agree with this. I experience exactly the same symptoms. The 
input error counter increases by one each time I send out a ping packet.

Could it be connected with the calibrate operation? (Disclaimer: I don't 
know a single thing about 802.11 protocol or the atheros chipset!)

Vincent