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

Before diving into solutions, it is critical to understand why Veeam insists on Port 443. Veeam Backup & Replication uses Port 443 for several key functions:

Major Issues After Upgrading to Veeam V13: Port 443 Conflict Before diving into solutions, it is critical to

tasklist | findstr 4488

Option C — Move Veeam to a different port (use only if changing the other app is impossible) Run the following command to find the Process

To fix this, you must first find which process is currently "squatting" on port 443. Open PowerShell or Command Prompt as Administrator. Run the following command to find the Process ID (PID) using port 443: powershell netstat -aon | findstr : Use code with caution. Copied to clipboard Identify the process name using the PID found in the last column: powershell -Id Use code with caution. Copied to clipboard Stack Overflow Common culprits for this conflict include: Hyper-V Replication: Often uses 443 by default for HTTPS replication. IIS (Internet Information Services): Web servers hosted on the same machine. Third-party monitoring or time-tracking software: Examples include applications like Timemaster. System Process (PID 4): IIS (Internet Information Services): Web servers hosted on

Stop the conflicting service (e.g., IIS or Hyper-V Replication) before starting the Veeam upgrade.

Before resolving the conflict, you must identify which process is currently holding the port.