Hi,

I've dug through everything I can find on this error and triple checked my settings but my users keep getting this error when returning to the site after a timeout or logout.  I have AD setup and working correctly at other sites and haven't run into this issue (though they are running older versions of DNN).

Here are the details about the site:
Type of site: Intranet only
DNN Version: 5.6.2 Community Edition
DNN AD Provider: DNN_ActiveDirectoryAuthentication 5.0.3
Windows Server: Server 2008 (IIS 7)
App Pool: Classic .Net AppPool (2.0)
AD version: not sure

I've followed the guidelines in the Active Directory User Guide (5.0.2).  I have all the permissions setup and Anonymous Authentication disabled and Windows Authentication enabled for the WindowsSignin.aspx file.  I also have the site setup in the trusted site for the browser.  I haven't manually changed anything in the web.config file.

Here's what happens.  The first time a user goes to the site they get the Error while processing Windows Authentication (Check your IIS settings. DesktopModules/AuthenticationServices/ActiveDirectory/WindowsSignin.aspx should NOT allow anonymous access.)  When they hit refresh it takes them to the site not logged in.  They click on the login button and they are able to login with their AD user id and password and if they click remember me they are able to close the browser, re-open and go back to the site and they are auto logged in.  The issue is once they timeout or when they go back to the site the following day, they are greeted with the Error while processing Windows Authentication message. 

I can re-create without the timeout by clearing my cookies. I'm not sure what I'm missing, any help would be appreciated.

Thanks,
Chuck

I downloaded 5.0.3 from the codeplex site: http://dnnauthad.codeplex.com/releases/view/65368.

I didn't do it as an upgrade, just a straight first time install. Do you think I should install 5.0.2?
Thanks,
Chuck

I just ran the appcmd config changes, changed the app pool to ASP .Net v4.0 (Integrated) and recycled everything. Still getting the error upon startup (after a timeout or when I clear cookies).

I don't understand what the difference is when DNN/IIS is re-directing to WindowsSignin or when I just hit refresh on the error (or link there directly). It doesn't work when DNN does it but works when I manually do it.

I don't see anything abnormal in the DNN event log or IIS log. The event viewer doesn't have anything out of the ordinary for the time when I receive the error but I do have a few timeout errors recorded:

Event code: 4005
Event message: Forms authentication failed for the request. Reason: The ticket supplied has expired.

Any other places I can look to try to get a sniff of what might be happening?

Thanks,
Chuck