I've had this issue for the month since I changed internet providers and I just discovered this thread through a Google search.  It obviously has something to do with the switch in internet carriers.  I've tried everything listed here and the only thing that works is uninstalling/reinstalling the Pandora app but this only works for a short time before it begins doing the same "connection error" thing again. I can access Pandora through the browser but it fails to advance songs, so basically, still useless.  I've begun using my Youtube music account for tablet entertainment now.  Not even sure it's a Pandora problem, to be honest. ... View more