MKWii Matchmaking not triggering (error 81010)

[PiporGames]

After connecting to the game, logging in and reaching to the WW screen, the game stucks on Searching for oponents. Given enough time, the game will autodisconnect with error 81010 (matchmaking server error).
Also, friend system does not work: You can add codes but both consoles will return always "Not friends".
Running on Ubuntu 16.04 with CoWFC fork.

[dvteixeira24]

if anyone encounters this: the other player became my friend after we got put in a worldwide match together