wont let me join any multiplayer games

Ive been trying to connect all morning first of all i was able to get into the lobby but couldnt find any games jept telling me there wasnt enough people to play so i restarted my internet and now it is saying my internet connection if fine but wont let me join the lobby it keeps telling me i have been disconnected from local server . Any tips would be great or if someone could help by adding me to a game cheers