Localhost11501 Exclusive
If the port is "exclusive" and blocked, it may be due to another process already using it.
When an application opens a port using an exclusive flag, it instructs the operating system's network stack to deny any other process from binding to that exact port—even if the other process attempts to use reuse flags like SO_REUSEADDR . Why Applications Demand Exclusive Access to Port 11501 localhost11501 exclusive
One of the most common hurdles developers face is trying to launch a service on a port that is already exclusively bound by another process. If you try to spin up a service on port 11501 and it fails, you will likely see an error message such as: EADDRINUSE: address already in use :::11501 Port 11501 is already in use Failed to bind to 0.0.0.0:11501 If the port is "exclusive" and blocked, it