We are preparing a beta. There may be a bug in LimeWire 4.8.1, there may also be a bug in your setup.

Please remove any configuration you have done on your router, on both sides, and tell both LimeWire's to use UPnP. See if that works. If it does, great.

If not, tell one side to use 'Manual Port Forward' and set the listening port & forwarding port to the same number (like 6666). Then set up that side's router to forward from requests at 6666 to your internal IP address. See if that works. If it does, great.

If not, tell the other side to use to use 'Manual Port Forward' and set the listening port & forwarding port to the same number (like 6666). Then set up that side's router to forward from requests at 6666 to your internal IP address. See if that works. If it does, great.

If not, we may have a bug.

I cannot help further unless I know what happens at each step. Telling me, "I tried this before" won't help.