That has a tendency to happen if the signal is 2 bars or less. I also suspect it might happen sometimes when wifi hotspots use the weird system when they make you go through a web page portal before you can actually get to the internet. I have a 770 and I experienced a similar problem at a convention center in Tampa. It was supposted to have free wifi, and I found a place where I had decent signal to the hotspot, but it still wouldnt connect right. I think I recieved the 'local link' error though.