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

Are you seeing this error during a or did it suddenly appear on an existing server ?

Once you’ve found the app, you have two choices: stop it or move it. A. VMware Workstation / Server VMware often uses Port 443 for its "Shared VMs" feature.

Look for the line that says LISTENING . The number at the far right is the . The Visual Way (Task Manager): Open Task Manager and go to the Details tab. Are you seeing this error during a or

If you’re trying to install or start Veeam Backup & Replication and you’re hit with an error stating that , you’ve run into one of the most common configuration hurdles in the backup world.

Veeam uses Port 443 (HTTPS) for various critical tasks, including communication with the backup server, cloud gateways, and managing VMware vSphere environments. When another service grabs this port first, Veeam can’t bind to it, bringing your backup infrastructure to a halt. Here is how to identify the culprit and fix the conflict. 1. Identify Which Application is Using Port 443 VMware Workstation / Server VMware often uses Port

Open the IIS Manager, go to Bindings for your sites, and either remove the HTTPS binding or assign it to a different IP address or port. C. Windows Global HTTP Settings

Dealing with Port 443 Conflicts in Veeam Backup & Replication The Visual Way (Task Manager): Open Task Manager

Once Veeam is installed and its services are running, you can decide if you want to restart the other application on a different port. Summary Checklist Run netstat -ano to find the PID. Identify the app in Task Manager. Reconfigure or disable the competing service. Restart Veeam services (via services.msc ).

Before you can fix the problem, you need to find the "squatter." Since Port 443 is the standard port for secure web traffic, the most common culprits are , Apache , Skype , or VMware Workstation . The Quick Fix via Command Prompt: Open Command Prompt as an Administrator . Run the following command: netstat -ano | findstr :443

Sort by the column and find the number you identified in the previous step. This will tell you exactly which .exe is hogging the port. 2. Common Culprits and How to Move Them