How to connect via wifi / TCP?

I have set up a little wifi to connect to telemetry with this and successfully connected to a tablet but despite my best efforts I can figure out how to connect APM planner and my Mac to it.

I see in the advanced settings I can select TCP port. The port is 2000 according to the terminal / CoolTerm set up yet it seems I can only go as low as 3000 in the selection in APM planner. I set the host address to the same as what has worked with the tablet As far as I know these are the only two settings regarding TCP connection but I can’t get it to work. I must be missing something!! I would really appreciate some help getting the little sucker working with APM planner!

Anybody??? I need to enter 2000 for the TCP port number but APM planner advanced settings only goes as low as 3000??? It does not accept a entry of 2000??