# Rockwell Studio listen tcp 127.74.52.3:44818: bind: An attempt was made to access a socket in a way forbidden by its access permissions.

- Link: https://www.agilicus.com/faq/rockwell-studio-listen-tcp-127-74-52-344818-bind-an-attempt-was-made-to-access-a-socket-in-a-way-forbidden-by-its-access-permissions/
- Published: 2024-10-24T18:45:28+00:00
- Author: Don Bowman

If you are using an Agilicus Launcher with Rockwell Studio rslinx to reach one or
more PLCs, you may see an error “listen tcp 127.74.52.3:44818: bind: An attempt 
was made to access a socket in a way forbidden by its access permissions.”

This indicates you have another process running which has globally opened this port.
You may find this process via:

    ```wp-block-code
    netstat -an |findstr 44818
    ```

If you see a result like:

    ```wp-block-code
    TCP 0.0.0.0:44818 0.0.0.0:0 LISTENING
    ```

This means that there is a process running with this port globally, exclusively,
open. You can find the process:

    ```wp-block-code
    netstat -anb
    ```

and you will see the named process. Stop this process which has the port open exclusively,
and, the Agilicus Launcher should now work.

To avoid this, you can either use a different port, reconfigure the exclusive process
to use a specific IP (instead of 0.0.0.0), or, run the Agilicus Launcher first.