Required Port 443 For Veeam Backup Replication Is Occupied By Another Application Link New! Jun 2026

If a temporary or non-critical process is using the port, terminate it. taskkill /PID /F Use code with caution. Method C: Change the Veeam Cloud Connect / REST API Port

(Event Viewer → Applications and Services Logs → Veeam Backup).

Because port 443 is now locked for VBR’s internal web services, any existing application occupying the port (including IIS, other web servers, or VPN services) will trigger the conflict.

: If your backup server also acts as a Hyper-V replica server, it often reserves port 443. IIS (Internet Information Services) If a temporary or non-critical process is using

If adjusting Enterprise Manager, open the .

Happy (conflict-free) backing up! 💾

Secures the transport layer for service provider connections. Because port 443 is now locked for VBR’s

: Veeam recommends installing VBR on a dedicated server to avoid port conflicts with other web-facing applications. Troubleshooting Connectivity

Run this command in an elevated CMD or PowerShell:

. This will tell you the PID (Process ID) of the application occupying the port Workaround Happy (conflict-free) backing up

. Because this port is fixed, the Veeam services will fail to bind and start if another application is already using it Quick Fixes for Common Conflicts

The result made his blood run cold: vmware-hostd.exe .