The report server has encountered a configuration error. Logon failed for the unattended execution account.

I recently ran into this error. “The report server has encountered a configuration error. Logon failed for the unattended execution account.” 

A couple weeks ago I changed the passwords on all my SCOM Service Accounts.  I didn’t run any reports since then, but when I finally ran one I got the above error.

So to fix it I logged into my SQL Server and looked at Reporting Services Configuration.  I initially thought it was the service account.

I changed the password and tried to run the reports but got the same error.

The looking a little further I realized the it was obviously the Execution Account as that is what was specified in the error.  

I then ran reports without any issues.

Here is the full text of the error

Date: 7/13/2011 10:10:35 AM
Application: System Center Operations Manager 2007 R2
Application Version: 6.1.7221.61
Severity: Error
Message: Cannot initialize report.

Microsoft.Reporting.WinForms.ReportServerException: The report server has encountered a configuration error. Logon failed for the unattended execution account. (rsServerConfigurationError) —> Microsoft.Reporting.WinForms.ReportServerException: Log on failed. Ensure the user name and password are correct. (rsLogonFailed) —> Microsoft.Reporting.WinForms.ReportServerException: For more information about this error navigate to the report server on the local server machine, or enable remote errors
   — End of inner exception stack trace —
   — End of inner exception stack trace —
   at Microsoft.Reporting.WinForms.ServerReport.GetExecutionInfo()
   at Microsoft.Reporting.WinForms.ServerReport.GetParameters()
   at Microsoft.EnterpriseManagement.Mom.Internal.UI.Reporting.Parameters.ReportParameterBlock.Initialize(ServerReport serverReport)
   at Microsoft.EnterpriseManagement.Mom.Internal.UI.Console.ReportForm.SetReportJob(Object sender, ConsoleJobEventArgs args)
Microsoft.Reporting.WinForms.ReportServerException: Log on failed. Ensure the user name and password are correct. (rsLogonFailed) —> Microsoft.Reporting.WinForms.ReportServerException: For more information about this error navigate to the report server on the local server machine, or enable remote errors
   — End of inner exception stack trace —
Microsoft.Reporting.WinForms.ReportServerException: For more information about this error navigate to the report server on the local server machine, or enable remote errors