connecting to server

I built and update my website with SmartFTP without any problems. Now, I'want to built two new websites but I can't get connected to the host server. I've filled in all the specifics needed for a new protocol but then everything comes to a standstill: the log remains silent [14:52:06] SmartFTP v2.0.999.2, and the connection field in the bottom says 'connecting' but nothting happens after that.

What do I do wrong?