Perhaps try the suggestions in the LW 4 Connection problems thread: If LW 4 Will Not Connect as most LW clones are comparable to LW 4, even though the technology of most clones is not quite as advanced.

Also check the host connections installer for LW clones (LimeWire Multi-CLONE ConnectFix.)

If still problems after that, post back specific details about your System Details setup.

You might be needing to port-forward for your modem-router device. This is generally easier than most people initially think.