¿Problems with Windows Vista or Sony Vaio?

Hello everyone
I have a Cisco 2100 WLC with two Access Points 1130, with two WLAN networks, one with WPA2 and the other with Web-Authentication. The two networks works correctly, but I have a client, a Sony Vaio with Windows Vista, which usually give  problems, disconnects, and when you try to reconnect, you can not.
When  this happens, in the WLC appears the error "Decrypt errors Occurred for client xx:xx:xx:xx:xx:xx using WPA2 key on 802.11b / g interface of AP xx:xx:xx:xx:xx:xx" .
Sometimes several times to restart the laptop, reconnect. The network card is an Intel 5100, anyone know if there is any inconsistency between this card and Cisco AP? Or is it a matter of O.S.?
I have no other Windows Vista client to verify, the other clients are Windows XP and 7. I have tried reinstalling different drivers on the laptop and not the solution.
Thanks

Hi Carlos,
Make sure that:
1. you are running latest driver from intel on your laptop
2. use only AES encryption with WPA2. If TKIP is also selected. Uncheck it and leave only AES.
Cheers
Serge

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