Local installations of VMware Workstation, Apache, or Nginx often claim port 443 for shared virtual machine management or local web hosting.
Once you know what application is using the port, choose one of the following methods to resolve the conflict. Method A: Stop or Disable the Conflicting Service
Execute the following command to find the Process ID (PID) utilizing the port: netstat -ano | findstr :443 Use code with caution. Local installations of VMware Workstation, Apache, or Nginx
┌──────────────────────────────────────────────────────────┐ │ 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 │ └──────────────────────────────────────────────────────────┘
Minimal implementation roadmap (phased)
These limitations have been a significant source of frustration in the community. It is strongly recommended to if you fall into any of these categories.
Because Port 443 is the default port for secure web traffic worldwide, it is frequently claimed by other applications (like IIS, WSUS, or third-party web servers), leading to a binding failure during Veeam installation or service startup. Update the replication settings on individual VMs │
If another application (such as an RMM tool or an older software version) is holding the port, you will need to:
Proceed with your Veeam Backup & Replication upgrade or installation wizard. The prerequisite block will pass automatically. or third-party web servers)