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

Veeam uses Port 443 for secure communication. Changing Veeam's port requires reconfiguring all managed servers and components to trust the new port, which is complex. It is usually easier to move the other application off port 443.

Here is a detailed breakdown of the feature, the conflict, and the resolution. Veeam uses Port 443 for secure communication

: If your VBR server also acts as a Hyper-V Replica server, it may be using 443 for replication traffic. IIS / Web Servers : Existing web hosting services or management consoles. Security Agents : Third-party monitoring or security software. How to Resolve the Block Here is a detailed breakdown of the feature,

Since Veeam's port 443 requirement is mandatory for v13, the solution involves reconfiguring the application: Reconfigure Hyper-V Replication Navigate to Hyper-V Settings Replication Configuration Change the listening port from to an alternative (e.g., 444). port 443 is Open IIS Manager

"Required port 443 for Veeam Backup & Replication is occupied by another application" In version 13, port 443 is

Open IIS Manager, select the Default Web Site, click Bindings in the right-hand panel, edit the HTTPS binding, and change the port from 443 to another number.