minecraft-wiiu p2p error when trying to connect to a world

[redmine4404]

I have setup a pretendo-docker on the ip 127.0.0.1.
I'm trinying with two cemu instance (running localy) to connect to the same minecraft world (with an account who host the world and a other who try to connect to it)
but the client cemu instance while spin until a 118-**** error happens (the seconde rror code change randomly)
the instance can connect to the friends service and the minecraft-wiiu server without any problem.

i have tried another setup when i host the pretendo docker instance on my local network ip, try to connect my cemu minecraft instance to my wiiu's world, but i have still 118-**** error (118-0513 is the most common which seem to be a nat problem, but everything is running on my local network). No problem with the friends or the minecraft-wiiu server too.

There is an explanation for this ?

[MatthewL246]

Sorry, I don't have any information on this because I haven't tested Minecraft online yet. It is possible that the games and servers might be flaky with multiple clients on the same network, but don't quote me on that.