Halo 3 campaign co-op random disconnects

Games Halo: The Master Chief Collection
1

Hey there, a bud of mine and I are trying to play the first mission of Halo 3 however it continuously crashes, either just going back to the title screen stating that an error occured, or attempting to change host and then stating that an error occurred.

Here is a list of everything we have tried:

  • Reinstalling Halo 3 - Reinstalling MCC - Locking our framerates to 60fps - Port Forwarding Xbox Live and having Open NATs - Changing party leader - Playing a different level - Changing graphical settings - Restarting our internet(many times) - Disabling firewalls - Throwing computer out windowWe genuinely have no idea how to solve this issue. I would appreciate if 343 could look into this problem for us. Thank you
2

As this appears to be an issue with your game, we recommend heading over to https://aka.ms/HaloSupport for further assistance. Please review the latest known issues and submit a ticket if your issue is not listed.

Thanks!