To find out which specific application is currently using port 443 on your Windows server, use one of the following methods:
Replace 4 with the PID you obtained from the netstat output. You can also use PowerShell: To find out which specific application is currently
Because port 443 is currently within Veeam v13 settings, you must reconfigure the conflicting application. Option 1: Reconfigure Hyper-V Replication (If Applicable) If Hyper-V is the culprit, change its replication port: Go to Hyper-V Settings > Replication Configuration . If you want to keep it closer to
If you want to keep it closer to your original structure: particularly with newer versions like V13
Veeam best practices recommend installing VBR on a dedicated server to avoid resource and port conflicts. If port 443 is essential for a primary line-of-business application on that server, migrating Veeam to a separate VM or physical host is the most stable long-term solution.
or newer, as v13 requires this compatibility level to function Firewall Rules
When installing or upgrading Veeam Backup & Replication (VBR), particularly with newer versions like V13, you may encounter the critical error: