title: Random errors in SSRS Log "The report server cannot open a connection to the report server database."
body: <p>My SSRS runs snapshot in the morning. I noticed some of the reports are not snapshoting once in a while.</p>
  
  <p>I found following error which is random daily for the difrerent report.</p>
  
  <p>The report server cannot open a connection to the report server database.</p>
  
  <p>library!WindowsService_28!1d168!02/23/2018-05:47:42:: e ERROR: Throwing Microsoft.ReportingServices.Library.ReportServerDatabaseUnavailableException: , Microsoft.ReportingServices.Library.ReportServerDatabaseUnavailableException: The report server cannot open a connection to the report server database. A connection to the database is required for all requests and processing. ---> System.Data.SqlClient.SqlException: Connection Timeout Expired.  The timeout period elapsed during the post-login phase.  The connection could have timed out while waiting for server to complete the login process and respond; Or it could have timed out while attempting to create multiple active connections.  The duration spent while attempting to connect to this server was - [Pre-Login] initialization=0; handshake=11; [Login] initialization=0; authentication=0; [Post-Login] complete=16573;  ---> System.ComponentModel.Win32Exception: The wait operation timed out
     --- End of inner exception stack trace ---</p>
  
  <p>Thank you,</p>
  
  <p>Kalpesh</p>