Hi,

Per Sharing Authentication Tickets Across Applications guidelines, I copied the machinekey from DNN web.Config to ASP.NET MVC Web.Config.

As per documentation this supposed to correct the session timeout, however the issue still exist and Health Monitory logs the following exception:

** Events **
---------------
Event code: 4005
Event message: Forms authentication failed for the request. Reason: The ticket supplied has expired.
Event time: 12/4/2012 3:18:52 PM
Event time (UTC): 12/4/2012 8:18:52 PM
Event ID: 012a495534014401a1a16be1b869b536 Event sequence: 359 Event occurrence: 2 Event detail code: 50202

Process information:
    Process ID: 4644
    Process name: w3wp.exe
    Account name: NT AUTHORITY\NETWORK SERVICE

Request information:
    Request URL: http://server/aspmvc/
    Request path: /aspmvc/
    User host address:
    User:
    Is authenticated: False
    Authentication Type:
    Thread account name: NT AUTHORITY\NETWORK SERVICE