Go to System Link mode in any game and then go in a room for this game and check if you see a game on your TV.
With so many different software firewalls available, each product will require different configuration. Firewalls can be responsible for not allowing you to view available games to join as well as kicking you from a game as soon as you join. Do no port-forward port 3074 UDP - these are software firewall instructions.
As a general rule of thumb, try the following:
• For XBox users, allow the IP address 0.0.0.1 full access on UDP.
• Also for XBox users, allow port 3074 full access.
• If you are still experiencing problems, browse our
Official XLink Forums.
Maybe you check out the official XLink Quickstart guide
here.
Note: Highly unrecommended but you may have to disable your firewall when you want to play on XLink Kai.