I've been playing Toribash since December. Back then Multiplayer is going smooth and there's no problem. But in recent days when I play Multiplayer, It just shows Tori and Uke and the words "Not Connected" are shown. How can I fix this?

Go back (use esc button), go multiplayer, and choose the room again. It works for me. Hope this helps.

Depends on what kind of room you are trying to go into. If you are trying to go into a Static Server that has a belt limit on it and you exceed that limit then you will not be allowed to enter. Try entering a private server first, if that doesn't work then come back.

White, Yellow. Can only go in Begginer Rooms
White, Yellow, Orange, Green, Can go in Intermediate Rooms
White, Yellow, Orange, Green, Blue, Brown Can go in Semipro Rooms
Black belt or higher can go in Black belt rooms

Ok thanks. I keep entering Begginer Rooms when I'm Orange Belt. Thanks again.

No probs, feel free to ask any thing you don't know about the game