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AMD CPU with Vista cannot connect to WLAN using MS-PEAP with WEP-128

We have a notebook "HP Pavilion tx1000 (AMD Turion64 CPU with Vista 32bits)". The notebook is using Broadcom 802.11a/b/g chipset, running AMD and Vista. It cannot associate to WLAN using MS-PEAP and WEP-128. Also, it cannot associate to PEAP and WPA2-AES.

The AP's log shows:

Oct 11 15:35:20 CCT: %DOT11-7-AUTH_FAILED: Station Authentication failed

The ACS's log shows:

"EAP-TLS or PEAP authentication failed during SSL handshake"

We do not validate the certificate in the wireless setup. Vista's WLAN AutoConfig is used to configure the wireless profile. We are running Autonomous AP with Switch-Based WDS (WLSM).

We have no issue with Intel Centrino on the above authentication and encryption scheme.

Have checked the CCX program, broadcom 802.11a/b/g chipset is supported only for windows 2000 and xp. There is no mentioning about support for vista. Could this be a compatibility issue?

Please advise and thks

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