so strange problems, our networking environment is: W2K3 AD+W2K3 IAS(RADIUS+802.1X PEAP CHAPv2+CA), the 802.1x security policy is PEAP+MSCHAPV2+root CA cert+AD account and password;
our Windows domain client can join 802.1x wired network, and there is no problems;
but on same environment(no changes on IAS server), we found the Lucid ubuntu client can not join the 802.1x wired networking, and it report "Authentication failed or timeout"; when we cancel root CA certs from Linux client, and only apply "PEAP-MSCHAPv2+AD account and password", the linux can join 802.1x wired networking;
why the MS IAS dial-in policy can not apply on Linux clients? anyone can help me?