I've been running bitcoin smoothly for months, although now it seems that I can't connect to the bitcoin network and transactions that I've sent aren't going through. At the bottom of the client it says "0 active connections to the bitcoin network" although I do have an internet connection. Tried restarting the client, didn't work. So, what do I do?
Try checking your firewall settings. Maybe something is preventing your client from making connections? And did you install anything lately that might be conflicting?