In the Game tab of DashPanel server select the pCars game you wish to configure and follow the instructions. In terms of data output AMS2 is the same as pCars2.

In pCars go to the Gameplay menu and set the UDP option to 4. If you experience lag try different options.

In DashPanel from the connection screen select the PCARS_UDP option from the mode drop down.
Then press the connect button on the bottom right.
In the log it should say UDP Listener started: xxx.xxx.xxx.xxx (your devices IP)
When you start pCars it should say Receiving data from: xxx.xxx.xxx.xxx (IP of console)

If this doesn't happen look in your wireless routers manual or google its model and information about broadcast or multicast and if it is support and how to enable it for that particular model.

If the pCars UDP data is laggy disable options in your router like UDP Flood Protection, DOS (Denial of Service) Protection, Broadcast Flood Protection.