zab is assisting with troubleshooting in the limewire forum. Rather than stubbornly give up, I thought I'd keep trying to get to the bottom of this.
4.14 using too much memory. Why? - LimeWire Forums
FYI, I'm impressed with the speediness of his replies. I do hope we find the problem and a solution.
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UPDATE: Click on the above link and go to the last few comments to see what seems to be the resolution for this issue.
I think if anyone is seeing the brickwall, it could be related to this specific sudden spontaneous memory hogging problem.
I think one might need to set Limewire and their router (if they use one) to UPnP if it isn't already.
Changing my router and limewire settings from manual port forward to UPnP seems to have stopped the sudden memory hogging problem.
Either that, or clearing the old extra windows firewall exceptions and reinstalling limewire seems to have maybe solved this issue.
THANKS!!!