wont let me join

[Geekmonster]

whenever i try to join in 1.8 it doesnt let me but i cant use any other version because it says it needs to be atleast 1.8 or 1.8.1 and niether of them work it keep saying restart your game i do it but it still says to restart your game, what should i do

 

[Faheem_]

Are you sure the IP is right? The only thing i could think is try a few more times today then maybe re-install MC