Try this: Delete LW's preferences folder when LW's properly closed. See point 3 here & also point 2 if you've used older versions of LW in the past (there could be a folder in either location).
Fixes for LimeWire
This will kill all of your settings within options, you'll have to go back through afterwards & reset things. If you're not sure of your settings, go through LW's tools > options & write them all down, so that you can reset things later.

What version of Java are you using? In LW Help > About LimeWire will show you.

Last time I posted I had a problem that almost identical post was used and I already did it, no help.

Again, the problem is with both Ares and Limewire.

A couple updates though, I'm running Limewire and it actually connected to 4 hosts (even though it had over 40 listed, I used to connect to 8-12 users per file). The bandwidth would peak at 22 kb/s but then drop. So then I booted up Network Magic and it kept telling me I was disconnected from the network and then reconnected. So it would only disconnect for maybe a second, and then reconnect. This conincided with the bandwidth gain and loss. Each time it disconnected, it dropped to 3kb. Then it would slowly regain strength and then when it got to 18-22 kb/s it would disconnect and go back down. Now mind you only Network Magic said this, not Limewire. However, the disconnects never lasted long enough to the point where the download reached 0 kb/s. When I closed Limewire, the disconnect/reconnect issue disappeared. I just don't know what the hell is causing it.

BTW, I've only had Network Magic installed a couple weeks so I don't think it's that, but it could be. I normally don't have it running though, I just did it for a test.

Also, I'm running Java 1.6.0_01. However, that was the version the beta installed for me. Prior to that i had 1.4.2 or somethin close to that.

Some people have had trouble with Java 1.6.0_01 but I'm using it & haven't had any probs at all.

You had port forwarding set up before, you could try that again.I can't find your router listed here...is it the BEFSR411 or BEFSR41?? Have a look at the router list here, you'll find detailed instructions.
PortForward.com - Free Help Setting up Your Router or Firewall

Also try reducing your upload & download bandwidth a little. In LW tools > options > advanced > performance & disable ultrapeer capabilities.

You could also try this tip: Tip: Purge the Downloads Queue!