Hi , Iread about windows vistas support for wirless single sign-on,I haveconfigured wireless network for WPA2 with AES encryption with 802.1x authentication using PEAP with MSCHAP V2. I have installed windows 2003 IAS for RADIUS authentication which is a member of AD. Clients (windows vista)are configured with sso Mode as preLogon, but my experience is that it works with only cached profiles, for a new user login gets an error there are currently no logon sever available. Log off from a previously cached workingprofile and then login with a new user will work. Could someone help me? thanks

I had the issue. resolved by verifying DNS and logon as domain\user name

Hi, verifying DNS ?, could you explain. thanks

check DNS settings, I had an incorrect DNS address