If you are changing the SSH port to a different one from the default, it would be advisable to restart the SSH Server service to update the config's listening settings. One way to change the SSH port is through the command line.
Step Two: Scroll down to Restart Services and click on it or enter "Restart Services" to the search bar.
Step Three: Click SSH Server (OpenSSH) from the list of available services you can restart through WHM
Step Four: Click Yes if you are sure you want to restart your SSH Server (OpenSSH)
It can take a little bit of time for the restart of the service to complete. Restarting the service may cause some site functions to halt temporarily.
If further problems occur after restarting SSH Server (OpenSSH), do not hesitate to contact our technical support by opening a ticket or starting a live chat so that we can provide you with additional support. We are standing by 24/7/365 to help you.