error message if port is closed

[afknapping]

trafficstars

tried to test it at the office but the port is blocked. would it be possible to show an inline message in the app?

[awitherow]

Would it be possible to run such a service through different ports as well? Or is 4321 required for file transfers?

I am not even sure if 4321 is the port responsible for not showing others in the network though.