Can you check if the account you have logged on with is part of OMEAdministrators or OMEUsers group?

I have rebooted the server several times.  I have also tried the IISreset without any luck.  I have looked in the Windows Event logs for any information but do not see any errors.  I have also looked in the IIS logs and do not see any errors.  Are there any other places to look to try and find what may be causing the issue?  It left it sitting on the splash screen for an hour and it never throws any type of error message.

I just fould the Dell OpenManage logs.  I am seeing an error logged.  "DataCache.ActiveUser.HasPermission(DataProvider.Security.Permission.Website_CanLogOn): Client Logon credentials not authorized"

Thanks for your post.

Can you try IISreset from the command prompt?

When I was restricting access to only certain users I ran into this issue so it definitely sounds like permissions.  Check the OMEAdministrators and OMEUsers groups as Abhijit mentioned.