If the conflict is insurmountable and you are using Veeam v13, some administrators have resorted to more drastic measures.

Before fixing it, you must identify the application holding the port.

Run the following command to see the process name directly:

netstat -ano shows PID 5678 listening on 443 → tasklist /fi "PID eq 5678" returns w3wp.exe (IIS).

(if both Veeam Backup Server and EM on same server):

Raj. The AcmeCorp agent on VEEAM-SRV-02 is squatting on port 443. Veeam needs that port. Can we rebind the agent to 8443 or something?

To resolve this, you must identify and reconfigure or disable the application currently occupying port 443. 1. Identify the Conflicting Application

For production environments, the best practice remains to give Veeam its own dedicated server. In the long run, investing in a separate machine or virtual machine dedicated solely to Veeam Backup & Replication is the most reliable way to prevent port conflicts, ensure high performance, and maintain your environment's security posture.