Required Port 443 For Veeam Backup & Replication Is Occupied By Another Application Jun 2026

If netstat shows the Veeam Backup Service (e.g., Veeam.Backup.Service.exe ) on port 443 but the installer still complains, you may have a stale installation. In that case:

If your Veeam server is also acting as a web server, IIS likely has a "Default Web Site" bound to 443.

Ensure that whatever alternative port you choose is properly whitelisted in your local Windows Firewall and edge hardware. If you need help resolving this conflict, let me know: Is this happening during a fresh install or an upgrade ? What operating system and Veeam version are you running? If netstat shows the Veeam Backup Service (e

in an elevated Command Prompt to see which Process ID (PID) and executable are using the port. Common Culprits Hyper-V Replication

Here’s a detailed, practical blog-style post you can use directly or adapt for your audience. If you need help resolving this conflict, let

If the conflicting application is not required on your Veeam Backup server, the cleanest solution is to disable it. Press Win + R , type services.msc , and press .

Used for integration with automation tools, Backup Enterprise Manager, and the VBR Console. Veeam Web Service: Handles secure web-based traffic. net stop http Sometimes

Select the site occupying the port (usually Default Web Site ).

or add a specific IP address binding to free up the port for Veeam. Temporary Workaround: Stop the conflicting service (e.g., net stop http

Sometimes, the port is reserved by the system’s HTTP driver ( http.sys ).