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Required Port 443 For Veeam Backup Replication Is Occupied By Another Application Link | Hot & Essential

The "VMware Host Agent" often claims 443.

He navigated to HKLM\SOFTWARE\WOW6432Node\VMware, Inc.\VMware Workstation .

If you are seeing errors indicating that , this guide will help you identify the culprit and clear the path for your backups. Why Veeam Needs Port 443 Veeam uses Port 443 for several critical functions:

Identify the program name by running this command (replace [PID] with your actual number): tasklist /fi "pid eq [PID]" Use code with caution. Method B: Using PowerShell The "VMware Host Agent" often claims 443

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Launch the from the Start Menu. Step through to the Service Account and Ports window.

I can provide the exact step-by-step configuration commands for your environment. Share public link Why Veeam Needs Port 443 Veeam uses Port

Locate the Veeam.Backup.Core.dll.config file in the Veeam installation directory. Edit the file to change the web service port bindings. Restart the Veeam Backup Service. 5. Summary Table Recommended Action New "Veeam Web Service" needs 443

: Veeam KB4557 advises that if third-party software is using the port, it is generally better to reconfigure that software rather than trying to modify Veeam's expected configuration. Summary of Resolution Steps

Change the port from 443 to a different, available port (e.g., 444 or 8443). Update the replication port for each virtual machine. If you share with third parties, their policies apply

If a temporary or non-critical process is using the port, terminate it. taskkill /PID /F Use code with caution. Method C: Change the Veeam Cloud Connect / REST API Port

: It is used to validate user activities, update licenses, and communicate with the Veeam License Update Server Compatibility Checks

Run the following command to list all active TCP connections and their corresponding Process IDs (PIDs): netstat -ano | findstr :443 Identify the at the far right of the output line.