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

netstat -aon | findstr :443 You will see output similar to this: TCP 0.0.0.0:443 0.0.0.0:0 LISTENING 4588

A Veeam server should ideally be a dedicated machine. If you’re constantly fighting for ports, consider moving Veeam to its own physical or virtual server where nothing else runs on ports 80, 443, or 9392 (the Veeam console port). Have you run into a different process hogging port 443? Mention it in the comments below—let’s crowdsource a full list of offenders! netstat -aon | findstr :443 You will see

tasklist | findstr 4588 Or, in PowerShell: netstat -aon | findstr :443 You will see

Run netstat -aon | findstr :443 one more time. Now you should see the Veeam services (like VeeamBackupSvc ) happily listening on port 443. netstat -aon | findstr :443 You will see

"The required port 443 is already occupied by another application."