The Exchange 2010 RU 29 was installed with administrator privileges. No errors during the installation.
Now the Application log is filled completely with 3009 warnings. These are pretty much nonstop since we installed the rollup last week. User can use Outlook to send/receive emails normally, but when the user tries to login to OWA, a “something went wrong” screen with the following information appears: “An unexpected error occurred and your request couldn’t be handled”.
It does not happen every time and sometimes it is enough to wait a while and try again and it works. But it is very annoying to users and the issue is now at the management level.
We have Googled but there is not much to do with Exception type: OwaInvalidCanaryException. It is possible that we do not look at the root cause of that error. All help is welcome.
The URL https://email.companyname.com/ecp is written with a lower case where it should be on the Exchange server.
We have cleared msExchCanaryData parameters, and clear the values for them in ADSIEDIT Configuration CN=Client Access,CN=<domain>,CN=Microsoft Exchange,CN=Services,CN=Configuration,DC=<domain>,DC=com.
And recycled OWA and ECP in the app pool in the iis.
There are four Exchange servers. Two CAS and two MBX servers. But only one CAS server is affected because OWA is installed on it. We can call it CAS01. Grateful for all the answers that can lead us in the right direction.
From Application Log:
Event 1309
Event code: 3005
Event message: An unhandled exception has occurred.
Event time: 2019-08-21 17:03:40
Event time (UTC): 2019-08-21 15:03:40
Event ID: c947c9d1233b4ab492f58792e1df05a5
Event sequence: 577611
Event occurrence: 13536
Event detail code: 0
Application information:
Application domain: /LM/W3SVC/2/ROOT/owa-1-132107735007571015
Trust level: Full
Application Virtual Path: /owa
Application Path: C:\Program Files\Microsoft\Exchange Server\V14\ClientAccess\owa\
Machine name: SAMIT-CAS01
Process information:
Process ID: 3920
Process name: w3wp.exe
Account name: NT AUTHORITY\SYSTEM
Exception information:
Exception type: OwaInvalidCanaryException
Exception message:
Request information:
Request URL: https://epost.forshaga.se:8443/owa/ev.owa?oeh=1&ns=PendingRequest&ev=FinishNotificationRequest&UA=0
Request path: /owa/ev.owa
User host address: 10.82.0.105
User: SAMIT\krrol00
Is authenticated: True
Authentication Type: Negotiate
Thread account name: NT AUTHORITY\SYSTEM
Thread information:
Thread ID: 62
Thread account name: NT AUTHORITY\SYSTEM
Is impersonating: False
Stack trace: at Microsoft.Exchange.Clients.Owa.Core.Utilities.CompareCanary(List`1 canariesFromRequest, String canaryFromCookie)
at Microsoft.Exchange.Clients.Owa.Core.OwaEventHttpHandler.ProcessRequest(HttpContext httpContext)
at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)
Custom event details:
Michael Wiskman