Required Port 443 For Veeam Backup Replication Is Occupied By Another Application Link -

Before you can fix the issue, you must determine which application is currently listening on port 443. You can do this via the Command Line or PowerShell.

He had two choices.

Before proceeding with your upgrade, verify the full list of required connections in the Veeam Ports List Finder to ensure all other necessary traffic (like ports 2500–3300 for data transfer) is clear. Veeam B&R 13 Change Web Service Port 443 Before you can fix the issue, you must