http://ayende.comAyende @ RahienCopyright (C) Ayende Rahien 2004 - 2021 (c) 202660Who cares about the recommended solution. This security feature didn't exist for a while and all of a sudden got pushed through Windows Update and broke a bunch of (SP) websites I maintained at the time. This feature is specifically one of the reasons server admins are wary to apply recommended MS patches. Anyway. Theoretically, malicious hackers can subvert security by launching an elevated-permissions website from a non-elevated-permissions request from your own machine, but who cares. Just don't run any other websites other than the app you intend. Still a little angry about the first time I encountered this bug, angry just remembering it. So dumb.http://ayende.com/16385/more-auth-issues-0xc000006d-on-windows-2008-r2#comment7http://ayende.com/16385/more-auth-issues-0xc000006d-on-windows-2008-r2#comment7Thu, 16 Jun 2011 00:27:43 GMTRyan, Yes, I restarted the machine.http://ayende.com/16385/more-auth-issues-0xc000006d-on-windows-2008-r2#comment6http://ayende.com/16385/more-auth-issues-0xc000006d-on-windows-2008-r2#comment6Wed, 15 Jun 2011 16:00:14 GMT(Actually, you might need to use an SPN if you're connecting via anything other than the existing name of the machine, as otherwise it will drop back to NTLM)http://ayende.com/16385/more-auth-issues-0xc000006d-on-windows-2008-r2#comment5http://ayende.com/16385/more-auth-issues-0xc000006d-on-windows-2008-r2#comment5Wed, 15 Jun 2011 14:55:53 GMTThe guys on the last post had it right when they were talking about setting up an SPN, but that only holds true if you're going from one web server to another (Which it sounds like you are not). Configuring windows servers to pass windows authentication tokens from one to another is all I've been doing for the past couple of months so if you want a more detailed discussion/help feel free to drop me an e-mail.http://ayende.com/16385/more-auth-issues-0xc000006d-on-windows-2008-r2#comment4http://ayende.com/16385/more-auth-issues-0xc000006d-on-windows-2008-r2#comment4Wed, 15 Jun 2011 14:55:15 GMTI know it's not a popular answer, but why are you using windows Auth? I've never had any love from it.http://ayende.com/16385/more-auth-issues-0xc000006d-on-windows-2008-r2#comment3http://ayende.com/16385/more-auth-issues-0xc000006d-on-windows-2008-r2#comment3Wed, 15 Jun 2011 13:53:51 GMTDid you try to restart the computer? As the KB article states to restart the server, not IIS. http://support.microsoft.com/kb/926642 // Ryanhttp://ayende.com/16385/more-auth-issues-0xc000006d-on-windows-2008-r2#comment2http://ayende.com/16385/more-auth-issues-0xc000006d-on-windows-2008-r2#comment2Wed, 15 Jun 2011 11:02:49 GMTCan you post/send the reg entries you used for the preferred solution?http://ayende.com/16385/more-auth-issues-0xc000006d-on-windows-2008-r2#comment1http://ayende.com/16385/more-auth-issues-0xc000006d-on-windows-2008-r2#comment1Wed, 15 Jun 2011 10:18:18 GMT