Required Port 443 For Veeam Backup Replication Is Occupied By Another Application Link «99% CERTIFIED»

Port 443 (HTTPS) is required by Veeam Backup & Replication for certain components and communication. If another application is already using port 443, replication, console connectivity or web components can fail. This post explains how to identify the conflicting process, safely free or change the port, and validate the fix.

tasklist /svc /FI "PID eq 1234"

The window popped up. Initializing... Connecting to host... Preparing metadata... Port 443 (HTTPS) is required by Veeam Backup

: Open a command prompt as administrator and run netstat -anob | findstr :443 . This will display the Process ID (PID) and the name of the executable using the port. safely free or change the port