Teknoparrot: Mario Kart Arcade GP DX banapass server is offline fix:

Teknoparrot needs Administrator permissions to run any game successfully.
Make sure you have a Teknoparrot account, and a Teknoparrot generated banapass for Mario Kart Arcade GP DX and input it into Teknoparrot game specific settings.
Make sure game server IP address is set to "104.244.72.41" in Teknoparrot game specific settings.
Make Sure both Teknoparrot GUI and "MK_AGP3_FINAL.exe" executable are permitted through Windows Firewall.
Make your your button mapping is correct. By default to load a banapass is "F2" key, I might remap it to "Enter" or "Space" for ease of use with controller.

Sources:
Teknoparrot Wiki
r/teknoparrot
Date: October 11th 2024