It could be that it is an intermittent UPnP problem as I rarely have more than one download running at a time or stacks of incomplete files wrestling for closure. My OSX firewall is off as well. If the brick wall appears again, I'll leave LW open to see if after several minutes, it disapears.

One other thing, I have noticed my IP address occasionally has changed, but this may be because I have been turning off electrical appliances recently to service my water heater (flipping off the breakers..240 volts is a nasty shock!). The firewall setting could be invoked as a result of this I 'spose.

I will follow up in this thread as things happen. Thanks LOTR for your reply!

McH