Required Port 443 For — Veeam Backup Replication Is Occupied By Another Application Link

Edit the httpd-ssl.conf or ports.conf file and change Listen 443 to your new port. Method C: Terminate the Process Immediately

[3†L4-L7][15†L22-L24][16†L32-L36]

If replications continue to fail, check the Veeam Backup & Replication logs located by default at C:\ProgramData\Veeam\Backup . Look for specific connection errors that point to the exact IP and port Veeam is attempting to access. Edit the httpd-ssl

"Generally we do not expect the backup server to be shared with 3rd party apps as that commonly leads to unpredictable behavior. And especially we don't expect there would be 3rd party apps accepting incoming connections, as this is the recipe for security breaches resulting in complete take over of the backup server".

Select your site under the Connections tree, and click in the right-hand panel. "Generally we do not expect the backup server

To avoid deleting your active replicas, go to each VM's -> Replication , and change the target replica server port to match. Scenario B: Resolving IIS and Other Web Server Conflicts Open the Services snap-in ( services.msc ).

This will list all URL reservations. Look for something like: http://+:443/ or https://+:443/ reserved for a specific user or service group (e.g., NT SERVICE\SSRS ). To avoid deleting your active replicas, go to

To identify which application is using port 443, run the following command in an elevated Command Prompt or PowerShell: netstat -ano | findstr :443

We’ve all been there. You’re in the middle of deploying or updating Veeam Backup & Replication, feeling confident, when suddenly the wizard stops you dead in your tracks with the dreaded error:

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

Is Veeam installed on a or a shared server?