Have some 20 Compaq EVO N600c and N410c with Multiport W200 wireless adapter installed that now crashes in Windows XP sp2 (using 801.x 128bit WEP). Switching off the adapter "cure" this but isnt very practical...
This began some weeks ago and didnt first see that this had a pattern. After some research it looks like the symptoms only appear there the clients associate with Aironet AP1231G with IOS v.12.3(8)JA2 and possibly JA1 also.
Saw on another forum that others had similar problems and they had solved it by turning off Aironet extensions on the AP. Are anyone else having theese problems?