If the command line's right but you're not connecting to the pool, I'd guess it's an issue with the port being blocked. Most pools will have a port 80 option of one kind or another, see if that works for you.
i will go into DMZ mode and disable windows firewall to see if i connect to their alternative ports.....
port 80 does nothing just tired another pool with supernova
i open on cgminer.exe and try to just connect to a server its like it wont even try.
i am using a Ethernet cable cat5, my mobo is the msi 990fx a gaming, uses the killer driver for my internet no idea if that affects anything