LAN / System Link issues during Campaign.

Happy Thanksgiving!

This is a weird one. My brother and I are home playing some Campaign. Legendary, each of us has our own Xbox, and we’re connected with an RJ-45 cable. We’re using System Link. The game loads, we blow them up, yaddida yaddida. But usually a half hour to 45 min into the game, it just kicks us apart. It’ll say to the host “Navweb has quit the game” or “Spawnling has quit the game”, depending on who the host is.

Is there any way to resolve this, or is this a known issue?