Unknown Error in LAN Game

  • Build: 101.101.36202.0 0
  • Platform: Microsoft Store
  • Operating System: Windows 10
  • Gamertag: L1ncoln 45

Me and 2 friends are trying to play a LAN game, we are all connected to the same router with a wired Ethernet connection, and we are trying to play a game over Xbox Live, we are all friends on Xbox Live. The host computer can set up the game and invite the other devices, but when the other devices try to connect, we get an “Unknown Error”

Here’s how to reproduce the problem:

  1. Get 3 PC’s which are able to easily run the game, (at least 4GB of video memory)
  2. Make them all connected to Xbox Live accounts that are all friends
  3. Make sure all 3 devices have the game via the microsoft store and have the same version (101.101.36202.0 0)
  4. Connect all the devices to the same router via wired Ethernet connection
  5. open the ports specified on the AoE2 DE support page (TCP: 3074,3478,5222 UDP:3478,5222) on all devices
  6. Have 1 device start a private LAN game in multiplayer and Invite the other players
  7. have other players accept invite (and hence receive unknown error)