Change the Port CommVault Uses


In some cases it may be necessary to change the port that the CommVault agent uses. By default the agent uses both port 8400 and 8402.

This can be verified by issuing the netstat -aob command on the client.


  • RDP to the client
  • Open RegEdit
  • Browse to HKLM\SOFTWARE\CommVault Systems\Galaxy\Instance001\Session
  • Change the nCVDPORT or nEVMGRPORT key to the new port you would like to use










  • Restart the CommVault services on the client
  • Verify the changes with the netstat -aob command.

Note: It also appears the port(s) can be changed during the installation of the client if you push the software from the CommServe.

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