Credential verification failed

We are using ExCM and all of a sudden are seeing an increasing number of Event ID:1315 errors in the server event logs. Details of the error follow:

Source: ASP.NET 2.0.50727.0
category: Web Event
Event ID: 1315

Event code: 4005
Event message: Forms authentication failed for the request.
Reason: The ticket supplied has expired.
Event time: 7/15/2009 2:28:26 PM
Event time (UTC): 7/15/2009 7:28:26 PM
Event ID: aaf8e04dee2e432d8957ba9dc5c9c015 Event sequence: 1479
Event occurrence: 53
Event detail code: 50202
Application information:
Application domain: /LM/W3SVC/96926341/Root-2-128921227563252563
Trust level: WSS_Minimal
Application Virtual Path: /
Application Path: C:\Inetpub\wwwroot\wss\VirtualDirectories\30399\
Machine name: xxxxxx
Process information:
Process ID: 4664
Process name: w3wp.exe
Account name: domain\appsmosssearch
Request information:
Request URL:
Request path: /nsg/nsgprop/ecbc/graph/Forms/AllItems.aspx
User host address:
User: Is authenticated: False
Authentication Type:
Thread account name: server\IUSR_SERVER
Name to authenticate:
Custom event details:
For more information, see Help and Support Center at

Is there a chance that this is related to my ExCM instance? That's the only forms based authentication I have in place on this prticular server. Thanks!   

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  • 0
    Permanently deleted user

    I'm going to guess this error occurs when the FBA login cookie expires. If so, this is a natural event is should not be cause for alarm. If your cookie expiration length is long, say 2 weeks, it may be that most users login on Monday but when they try back 2 Mondays later their cookie is expired. Unfortunately login/cookie management is a SharePoint feature and not part of ExCM. I would recommend opening a support ticket with Microsoft if your users are experiencing issues. If I find out more I'll pass it along.

    Jeremy Luerkens
    Manager, Software Production
    SharePoint Solutions
  • 0
    Permanently deleted user

    Thanks Jeremy. I do have a couple of users that are having problems uploading documents where it seems that their attempt to upload coincides with one of these events in the Event Viewer.

    I was able to log in with a test account I have and had no problems uploading using a couple of different steps, check out forced, versioning on and off etc... Users on the other hand are getting that wonderful "Unknown Error" when they try and upload the same file. I directed them to delete their temp files and cookies and see if that makes any difference. Time will tell.

     Thanks again for your reply. I appreciate it!

  • 0
    Permanently deleted user

    In some cases you can get a better error message by turning off SharePoint's friendly error message feature. Learn how to do it here....

     In addition, if editing documents is your issue Microsoft released an Office Client update which makes Client Integration (Office Integration with SharePoint) possible in an FBA environment. Typically Client Integration is turned off in an Extranet. You might want to have your clients install the patch and enable Client Integration (Central Administration -> Application Management -> Authentication providers -> Zone). You can read more here...

    Jeremy Luerkens
    Manager, Software Production
    SharePoint Solutions
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