How does the multiplayer works? Kind of a niche cache: sitting on the public wifi of a ferry and i can't see created sessions on my laptop. One phone can see the other phone (that is hosting) though: it is flaky. All of them are on the same wifi
Maybe the wi-fi of the ferry was bad? I'm saying was because this comment was made 2 days ago.
Could be, ssh'ing between the units works ok, signal strenght ok. Some half'assed protection? Anyhow, no one else (what i could see) tried to play ;)