Required Port 443 For Veeam Backup Replication Is Occupied By Another Application Link ^hot^ (FRESH ✯)

TCP 0.0.0.0:443 0.0.0.0:0 LISTENING 4 TCP [::]:443 [::]:0 LISTENING 4

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.

For replication environments utilizing cloud gateways that run into 443 binding errors: Open the Veeam Backup & Replication console. Go to > Service Providers . Edit your configured provider properties. Edit your configured provider properties

: Run the netstat -ano | findstr :443 command again to confirm that no applications are listening on the port.

If you encounter this conflict, identify the application using port 443 and apply the relevant solution: Hyper-V Replication Conflict Advance to the or Gateway setup step and

Change the "Default Web Site" binding from 443 to another port (like 4443) via the IIS Manager.

Advance to the or Gateway setup step and specify an explicit alternative port provided by your cloud partner (such as 6180 ). Step 4: Verification other web servers

The error can manifest in different scenarios:

If you installed VMware Workstation or other VMware management tools on the same machine, its built-in web server uses port 443.