If I remember, jgo is hosted on linode? Their Atlanta servers have been getting pummeled for a few days now. So beware!
(My serverbox is in their atlanta section D:)
JGO is hosted in London, but stability has been pretty spotty this week. It seems to be the network infrastructure though, as I get down reports (downtime being 2-4 hours!) from the USA, while I can still browse JGO from Europe.