Required Port 443 For Veeam Backup & Replication Is Occupied By Another Application ((full)) -

Open and run:

Look for a line showing LISTENING with port 0.0.0.0:443 or [::]:443 . The last column is the .

As John was trying to troubleshoot the issue, his phone started ringing. The company's CEO was on the line, asking about a critical server that was supposed to be backed up the previous night. John explained the situation, and the CEO stressed the importance of getting the backups up and running as soon as possible.

Run as Administrator in PowerShell or CMD: Open and run: Look for a line showing

The preferred best practice for a dedicated Veeam server is to keep Veeam on Port 443. This ensures compatibility with firewalls, proxies, and Veeam Cloud Connect services. Therefore, you should move the conflicting application to a different port.

: If possible, change the port of the conflicting software (e.g., move Windows Admin Center to port 6516).

She opened Teams. Direct message to .

To resolve this conflict, you must identify and reconfigure the competing application. 1. Identify the Occupying Application

Open IIS Manager , expand your sites, and select the Default Web Site . Click Bindings in the right-hand panel. Edit the HTTPS binding and change the port from 443 to an unused port (e.g., 4443), or stop the website if it is unused. 2. VMware Workstation / vCenter Server

The Veeam Backup Enterprise Manager and modern Veeam consoles communicate via this port. Step 1: Identify the Conflicting Application The company's CEO was on the line, asking

Local installations of VMware Workstation, Apache, or Nginx often claim port 443 for shared virtual machine management or local web hosting.

Have you encountered other unexpected services blocking Veeam ports? Let me know in the comments.

: With port 443 clear, proceed with the upgrade or installation wizard. The wizard will complete successfully and bind the Veeam Web Service to port 443. : With port 443 clear