Change the specified HTTPS port from 443 to an alternative open port (such as 4443 ).
If another system service claims Port 443 before Veeam starts, the Veeam Installer will block deployment, or the VeeamBackupEnterpriseManagerSvc will fail to initialize. Step 1: Identify the Occupying Application
Stop the conflicting service (e.g., IIS or a custom web app). Complete the Veeam VBR v13 upgrade or installation. Change the specified HTTPS port from 443 to
Consult the Veeam Ports Guide to ensure no other required ports are blocked.
Get-NetTCPConnection -LocalPort 443 | Select-Object LocalAddress, LocalPort, OwningProcess, State | Format-Table Use code with caution. Complete the Veeam VBR v13 upgrade or installation
Right-click the button and select Terminal (Admin) or PowerShell (Admin) .
on your Veeam Backup server.
Major Issues After Upgrading to Veeam V13: Port 443 Conflict
If is using the port, you can change its binding via the IIS Manager (InetMgr.exe) by selecting "Edit Bindings" for the website and changing 443 to a different port. Right-click the button and select Terminal (Admin) or
Major Issues After Upgrading to Veeam V13: Port 443 Conflict