I was getting Socket connect failed: Connection refused in the "overview - Hardware Version" line earlier but it has seemed to disappear.
The miner needs time to do its auto-tuning, that can be anywhere from several minutes and by some reports up to an hour. During tuning you get the "Connection refused" message and it goes away when tuning is done.
How long are you waiting?
Any whitespace at the end of your pool and/or user info? If so delete the space because it makes those entries invalid.