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

Powers the Veeam REST API for automation and third-party monitoring tools.

Veeam Backup & Replication (VBR) v13 is now a mandatory, hardcoded requirement for the Veeam Web Service and API Gateway. If this port is occupied by another application, the VeeamBackupRESTSvc

There are two main paths to resolve this: (Recommended) or Change Veeam (Advanced). Powers the Veeam REST API for automation and

Before making changes, you must find out exactly which application or process has hijacked port 443. Method A: Using Windows Command Prompt (Fastest)

If the site on IIS is non-critical, shift its HTTPS binding to an alternative port (e.g., port 8443) via the IIS Manager console. If IIS is not required on your Veeam Backup server, open services.msc and stop/disable the World Wide Web Publishing Service . Culprit B: Microsoft Hyper-V Replication Services Before making changes, you must find out exactly

Allows remote Veeam Backup & Replication consoles to authenticate and manage the server.

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Run the following command to find the Process Identifier (PID) using port 443: netstat -ano | findstr :443 Use code with caution.

Access the agent configuration file or centralized management dashboard to reassign its local listening port, or temporarily stop the agent's Windows service during the Veeam installation process. Step 3: Clear the Conflict and Proceed