Lync 2013 Persistent Chat Service stops after 20 minutes

Followed by Event 53503, LS Persistent Chat Server, This might happen due to an issue with the Persistent Chat DB.

The work around is to export the Persistent Chat data from the Persistent Chat database to a file, run a clean installation the Persistent Chat database and then import the Persistent Chat data from the file to the Persistent Chat database.

Use the following commands:

  1. Export-CsPersistentChatData –DbInstance <YourPCInstance> –FileName PCExport.zip to export the data to file.
  2. Install-CsDatabase –DatabaseType PersistentChat –SqlServerFQDN <PCServer.Domain.local> –SqlInstanceName <YourPCInstance> –Clean to clean the Persistent Chat DB.
  3. Import-CsPersistentChatData –DbInstance <YourPCInstance> –FileName PCExport.zip to import the data.

Microsoft released this KB to resolve the above issue.

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