[U2Lynne]

I have found that I will sometimes suddenly show up as firewalled and the only way to 'undo' it is to do something to the router - like change the port number. I'm not sure why it does that at times. Another thing I've been told to do is to turn off and unplug the router for about 30 seconds and then plug it back in. I just find it easier to change the port than try to go behind the computers and reach the router and try not to mix up all the other wires back there.