title: Azure Backup for RM VM's
body: <p>I am trying to setup Azure Backup (using recovery services) for RM VM's. I have one successfully working, but my other 3 servers all fail with "Backup failed with an internal error." when trying to process the snapshot. </p>
  
  <p>The server that works was deployed from the Azure gallery.  The other three servers were uploaded from a base Windows Server 2012 R2 Standard install.  I installed Azure guest agent and it is version 2.7.1198.766.  I have tried registering the server while in the same NSG that the successful server is in and also outside of a NSG all together.  No luck.  When I look at the extensions installed, the server that works has Microsoft.Azure.RecoveryServices.VMSnapshot installed and the others do not.  Does anyone know how to install this extension manually?</p>
  
  <p>Thanks!</p>