I work for a large company that deploys Cisco Aironet 1200 access points running IOS versions 12.x (12.2 and .3 mostly) and using both internal Intel Centrino NICs and some external Cisco PC NICs. The issue is dropped connections. They drop for just a few seconds and then reconnect and reauthenticate. Some of the apps we are using are very senstive to dropped connections - which causes users to have to log out and back in. However, the drops do not occur with Cisco cards. I am suspecting this is a bug in XP and possibly the internal NIC since they seem to work better with external cards, hence the external antennas. Anyone seen this issue before, work with similar equipment or have any ideas whatsoever? I am stumped and this is becoming high profile. Thanks for all of your help.