I think I got that error when I had my linux permissions set up incorrectly and I couldn't connect. I don't know if you are on linux though. Maybe it is a firewall or router problem?
__________________Taking over the world, one computer at a time. ~Slick
Those servers are on standby right now because they are not assigned to send/receive any work units. In other words, there are no units that the servers are sending, so nobody has any units to send them.