You may see the following error when trying to run a SQL Server Reporting Services report for Configuration Manager: "The DefaultValue expression for the report parameter ‘UserTokenSIDs’ contains an error: There are currently no logon servers available to service the logon request. (rsRuntimeErrorInExpression)"
This issue can be caused if your reporting services point is unable to communicate with a domain controller. This happened in my lab where there is only a single DC. The DC was powered off for maintenance. After the DC was powered back on, the site server required a restart to resolve the issue.