She realized the truth with a sinking feeling: Veeam, by default, binds to all interfaces. It saw the AcmeCorp agent still technically occupying the port on the secondary IP. Windows Sockets don’t care about your IP segmentation logic—if any process listens on 443 on any IP, no other process can bind to 0.0.0.0. A cold war over a single integer.
: Look at the last column of the output for the Process ID (PID) . Find the Name : Open Task Manager (Ctrl+Shift+Esc). She realized the truth with a sinking feeling:
Before you can resolve the conflict, you must find which process is currently listening on port 443. Execute the netstat command : netstat -ano | findstr :443 A cold war over a single integer
If you want, I can draft UI mockups for the activation flow or produce example CLI/API calls and configuration snippets for the relay and agent update steps. Before you can resolve the conflict, you must
If the conflict is with another HTTP.sys reservation, remove the other reservation:
This error typically occurs during an upgrade to or later, where port 443 is now hardcoded for the REST/Web UI service. Because this port is required and cannot be changed within Veeam's current supported configuration, you must identify and relocate the conflicting application. 1. Identify the Conflicting Application