1732132 - Unable to login to Enterprise or view Webi Reports in Microsoft SharePoint with IOMS installed and claims based authentication enabled

After installing IOMS (Integration Option for Microsoft SharePoint) on a Microsoft Sharepoint server and enabling claims based authentication, you get intermittent login exceptions and are unable to view web intelligence reports.

You may also encounter the following symptoms:

• The error message: "Account Information Not Recognized: An error has occurred propagating the security context between the security server and the client. Please contact your system administrator."
• Error messages like this in the log files:
  
  |7c1a26ac-3695-6484-c873-32146b7b5f16|2012 04 24 10:00:11:588|-0400|>>|A|
  |w3wp| 4652|1420|||0|0|0|0|EnCOMSessionMgr.GetSession|localhost:4652:1420.29060:1|-|-
  |EnCOMSessionMgr.GetSession|localhost:4652:1420. 29060:1||||||||||||assert failure: (.\infosessionmgr.cpp:973). (false: Couldn't get token)
• A fiddler log may also show 401 errors on ServerGateway.svc
• When trying to view a webi report, the logo will flash on screen, but nothing will happen

SAP BusinessObjects Enterprise 4.0 SP2 Patch 12
Microsoft Sharepoint 2010 SP1
IOMS (Integration Option for Microsoft SharePoint)

ServerGateway.svc, claims, sharepoint, Kerberos, IOMS , KBA , BI-BIP-DEP , Webapp Deployment, Networking, Vulnerabilities, Webservices , Problem