A few weeks ago my dad installed this wireless printer thing onto my computer to print wirelessly and ever since then my minecraft started being screwy and it said this: Failed to login: java.net.socket.exception:address family not supported by protocol family: connect. But i got around this problem but now i cant loggin to my multiplayer servers and i cant join LAN servers and people cant join my LAN servers. I have tried many solutions to this problem off of google youtube and even the forums but none have worked. Any help would be highly appreciated.
I tried what the guy had to offer but it did not help