Buggy Client?

I have to hard shutdown the client and relogin several times before I can get into a game. It's usually by about 1:30 into the game when I get in. Sometimes it tells me my firewall is blocking it, sometimes it give me different error excuses. I can't spectate games either. When I try, it tells me that it cannot gather the required data and that it will exit, which it doesn't. Half the time, the game reel at the bottom of the client doesn't even show anything. What do I do?