I did some work with Atheros back a couple years ago [published as 'Correlating WLAN Link Loss with Data Throughput, High Frequency Electronics January 2003]. The fellows I was working with told me that the first-generation release had a bug which caused the counter for missed beacons to fail to re-initialize. Thus if you were missing any beacons at all due to interference or low signal levels, the missed beacons would accumulate until they triggered a loss-of-association event, forcing the client to reassociate. In my work this showed up as an anomalously low data rates at ranges that should have worked well. The problem was fixed in the Gen II hardware. I don't know if this was hardwired or is amenable to a firmware upgrade.
Daniel M. Dobkin Enigmatics 1-408-314-2769 [EMAIL PROTECTED]
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