Thanks, that helps rule out the memory problem.

Hmm. I can't get at a 10.2.8 machine to help test the problem, so the following is just a guess:

FWIW, sounds like all the connections have been used (even if they are not actively downloading), and something in the OS (router/modem maybe?) isn't allowing other apps to create a connection, yet as the browse example shows, LW can find or make a free one. That suggests LW has control of the connections.

Perhaps look through the LW prefs and play around with the connection/ download settings. Running as a leaf uses fewer connections: maybe disabling Ultrapeer will help.