wireless access authentication issue



I've got 2 Panasonic Toughbooks running WinXP sp2 with Intel NIC's in our
service dept. using a Cisco AP. After the Pc's are shut down or go into
hibernation / standby mode when waking up they don't want to authenticate
with the AP. Once they do everything is fine until they shutdown or
hib./standby. We never know what's going to make them decide to connect.
Sometimes the only way I can get them to authenticate is reboot the AP then
everythings fine all day long. I'm using WPA-psk, Cipher w/TKIP, Mac
filters, static IPs, and key rotation on the AP. Could this be a Windows
issue or is it going to be a NIC / AP issue? Brad


.



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