[isalist] VPN Authentication w/Radius to Server 2008

  • From: Steven Comeau <scomeau@xxxxxxxxxxxxxxxxxx>
  • To: "isalist@xxxxxxxxxxxxx" <isalist@xxxxxxxxxxxxx>
  • Date: Thu, 10 Sep 2009 21:54:37 -0400

Our ISA 2006 box is not on the domain, so we use RADIUS to authenticate VPN 
users against the Domain.  We've been successfully using RADIUS on a Win2003 
Server without issue for quite some time now, but I'm now transitioning to 
Server 2008 and am having a bear of a time with Authenticating users via VPN.  
All seems to be fine on the actual RADIUS server/client communication, but it 
appears that NPS on Server 2008 (the IAS replacement) keeps giving me the 691 
Error (bad username/password) when I try to VPN.  It appears that NPS on Server 
2008 can't authenticate users against the Active Directory.

I know this isn't really an ISA issue, but if anyone has any help or documents 
they can point me to, that would be excellent.  I've done the MS one on adding 
the domain\ before the username, but that didn't solve the issue.  Anyone have 
NPS configuration issues with VPN and experience with solving them?


Steve Comeau
Associate Director of IT  Rutgers Athletics
83 Rockafeller Road
Piscataway, NJ  08854
732-445-4623 (fax)


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