Well it appears something has changed.

But it it's hard to say what without that information.

Did you try deleting the .limewire folder that was explained in the link for fixes for LimeWire.

Suggest you find out and post that information otherewise may not be able to help.

Looks like something is blocking LimeWire from getting access to the internet. Usually a Firewall.

Do this in LW tools>options>bug reports>view example --- received incoming this session --- does it say true or false