Lord of the Rings, I appreciate you trying to help us. I tried the 4.0.8. and it didn't work neither. I also reinstalled MRJ 2.2.5. I don't understand why 4.0.10 Pro was working great (turbo), and now, nothing. Is it the area that I live in, the college network, provider? Why is Limewire so tempermental? I'm getting tired of guessing, trying this and that with no avail.
Windbars

Well I just said "forget about it" and bought a new computer. Limewire works great now!

Perhaps they are at fault then. Colleges are reknown nowadays for blocking p2p programs. They may have changed their policies.

Now don't get me wrong. I like Limewire when it works, but recently it doesn't connect. Why is it I can use another program like Drumbeat to download music and I can not use Limewire? The reason I'm so stuck on getting Limewire to work is because it's a better program than Drumbeat and I paid $18 for it.
Windbars

Have you tried Tip: Purge the Downloads Queue! as this will help freshen up the program when you start it. Hopefully that will give you better option at changing listening or/& connection port. You could try one between 49152 - 65535 (a good one to try for some people is 64049.)

I generally had to add more ram to LW depending on how many shares & incomplete files I had. After purging, I would reduce it again. To add ram if needed & only if you have any to safely spare, select the program, command (apple key) and i keys to get information. In the window that appears you will see an option for ram allocation (memory.)

You are finding it is connecting sometimes, and sometimes not? How about if it doesn't connect, you quit, then restart, reconnect. I know when I used dial up with an early version of LW it could take considerable time to connect sometimes. And for some reason, opening my browser seemed to help lol. Not sure why. But give it plenty of time to try to connect.

I presume you did try deleting your LW prefs folder called .limewire whilst LW was closed?