We are running Cisco 12xx APs in autonomous mode. Wireless clients seem to to disconnect at regular intervals - for some it's about every 30 sec and for others it's about every few
minutes. We have the APs select the least congested channel dynamically. We have further tried both the default radio settings as well as experimented with Best Range and Best Throughput options but the problem seems to stay.
The utilization on APs is only a few % so it processing does not seem to be the issue. We have seen clients jumping between APs while stationary on their desk as well as reassociating with the same APs within minutes. And the strange thing is that this problem occurs on some APs and not on others with some clients and not with all of them.
Clients have wireless settings pushed through GPO (using Windows wireless settings). Most wireless cards are built-in Intel model (2200BG/3945ABG series).
This is happening only after moving from static WEP to 802.1x.
I am wondering about the Association page on APs that give an 'inactivity timeout'. I have not seen a clear definition/use of this configuration. Right now it is set to a default 60 seconds for all devices.
Appreciate any help.