@buttersoft thx man...
i have already read many sites and saw many videos (youtube). but nothing really helped with "Mario Kart Arcade GP DX" how to run it in network (LAN).
With Sega Rally 3 and Ford Racing i have no problems at all.
It would be a big help if someone that already got "Mario Kart Arcade GP DX" running, can teach me how to setup. do i really only need to change the ID's in the TEST MENU? Or are there any other settings need to change?
Just in case anyone finds this thread while trying to figure it out, as I did, it's actually very simple, or maybe it's just very simple now with the newer Mario Kart DX 1.10 dump and Teknoparrot 1.61. Anyway yes that's all I had to do, give each cab a number in the test menu.
As someone mentioned for the #1 cab you just leave it, you don't have to do anything.
Of course make sure in Teknoparrot that you have assigned a control for the "Test" button. Also make sure you assigned a control for the "Enter Switch" as this will be your ENTER button in the Test menus.
Using the Test button go into the test menu.
Select the second menu item from the top.
In there you will see the text "ID" and a number that can only be changed from 1-4, so it's quite obvious. Set cabs 2/3/4 to their number.
That's it. You might have to cycle each cab thru their Test menus again after this, or reload them completely if you wanna be sure, then they should detect each other. Now when you start a game you should see it's waiting for the other players to join.