@Charlie or Richard:

I have a suggestion to the Supervisor.exe. The programe allows to start multiple instances. But if you try to oberve multiple lines at the same time you have to use another port because the first instance reserves the port exclusiv.

But it seems, that it would be no problem for the protocol to support multiple instances, because it is UDP. And there are no datas received that need to be hidden from other processes.

My suggestion is to try out if it may help to set the property UdpClient.ExclusiveAddressUse to false. You may catch this seperate because it is not fatal if this fails. You may also replace the constructors with parameters with the constructor without parameters and call UdpClient.Connect(...) instead (maybe before or likely after setting ExclusiveAddressUse).

If this helps to open multiple Supervisor.exe without changing the receive ports I would suggest to do that. (But I'm not sure so you better test before.)

 

Gleissperre

why would one want to look at multiple lines? The system was designed in such way that one Supervisor is active and one would look at one "world" only. 

It's similar as trying to watch two television channels at the same time? Why would one do that?