Hi,
We just had a problem where one would browse to OWA, sign on with any given user, and get the ":-( something went wrong"-message.
Upon viewing the logs, error-events were shown with the following detailed info:
source: MSExchange OWA
eventID: 137
task category: core
System.ArgumentOutOfRangeException: The performance counter: "Current Users" is not supported to be updated by method Globals.IncrementCurrentUsersCounterBy(). Parameter name: performanceCounter at Microsoft.Exchange.Clients.Common.PerformanceCounterManager.IncrementCurrentUsersCounterBy(ExPerformanceCounter performanceCounter, Int64 incrementValue) at Microsoft.Exchange.Clients.Common.PerformanceCounterManager.DecrementUserPerfCounters(String userName, Boolean isProxy, Boolean isLightExperience) at Microsoft.Exchange.Clients.Owa2.Server.Core.UserContextManager.TerminateSession(UserContext userContext, CacheItemRemovedReason abandonedReason) at Microsoft.Exchange.Clients.Owa2.Server.Core.UserContextManager.UserContextRemoved(Object parameters)
The only thing I did was restart IIS (after which the problem persisted) and begin the updating process. Anyone have a clue what may have caused this error?