My friend and I both are connected to wifi and can see that we're both online. However, I'm not able to join her world, nor can she join mine(she plays on a kindle fire tablet). We already checked the world settings and ensured that friends could play without invitations, but every time we try joining each other's worlds, it says unable to connect. This is only happening between her and me. As for other online friends that I have that play on other platforms(iPhone), we can play together, but not my friend with the kindle fire tablet.