No matter how long I leave LimeWire running for, it never connects to the server(s) and it says "Connecting...".

I'm running Windows Vista Home Premium, I only have the Windows Firewall on my PC, I use wireless (dsl/cable) internet. I've had LimeWire on my PC, in the past, and it's always worked. But all of a sudden it's stopped working. I've tried other P2P programs (FrostWire, Shareaza, and more) and they still never connect! The check-box beside LimeWire is checked (in the Windows Firewall options).

Can someone please help me?

I've tried the other threads that give suggestions, on how to fix these problems, but they're not working for me (of course)!