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

When upgrading to Veeam Backup & Replication (VBR) v13 , many users encounter a critical installation block:

The output was chilling:

┌──────────────────────────────────────────────────────────┐ │ 1. Open Hyper-V Manager -> Replication Configuration │ ├──────────────────────────────────────────────────────────┤ │ 2. Change the HTTPS listener port from 443 to 4443 │ ├──────────────────────────────────────────────────────────┤ │ 3. Update the replication settings on individual VMs │ └──────────────────────────────────────────────────────────┘

If the conflict is insurmountable and you are using Veeam v13, some administrators have resorted to more drastic measures. When upgrading to Veeam Backup & Replication (VBR)

If you run into any road blocks, let me know the occupying port 443 or your current Veeam version so I can provide customized commands. AI responses may include mistakes. Learn more

Run the following command as an administrator to see the process name: powershell

Communication between the Veeam Backup Management Server and managed VMware vSphere or Microsoft Hyper-V hosts. Update the replication settings on individual VMs │

Veeam Backup & Replication requires TCP Port 443 specifically for its . This service acts as the secure communication channel (using HTTPS) between the Veeam Backup Server, Backup Proxies, Backup Repositories, and Managed Servers (vCenter/ESXi/Hyper-V).

John tried to stop the Acme Secure Gateway service, but it wouldn't budge. He then tried to change the port used by Veeam Backup & Replication to a different one, but that would require updating the configuration on multiple servers, which would take some time.

This is a tactical solution, ideal for getting past a Veeam installation or upgrade. Learn more Run the following command as an

If you installed VMware Workstation or vCenter components on the same Windows Server as Veeam, VMware will hijack port 443 for its shared virtual machines service.

Once you know what application is using the port, choose one of the three strategies below to resolve the issue. Strategy 1: Stop or Disable the Conflicting Service

Veeam operates on a "component-based" architecture. The Veeam Backup Server is the brain, and it communicates with "Components" (Proxies, Repositories, WAN Accelerators) using a proprietary protocol wrapped in SSL/TLS encryption.

If installed on the same machine, VMware management services will claim port 443.

She restarted both services. She ran netstat -ano | findstr :443 .