Required Port 443 For Veeam Backup & Replication Is Occupied By Another Application __top__

netstat -ano shows PID 5678 listening on 443 → tasklist /fi "PID eq 5678" returns w3wp.exe (IIS).

This error is a common blocker when upgrading to or installing Veeam Backup & Replication v13 port 443 is now hardcoded and required for the Veeam Web Service and API Gateway netstat -ano shows PID 5678 listening on 443

If Internet Information Services (IIS) is occupying the port: netstat -ano shows PID 5678 listening on 443