Are you on a dedicated server hosting plan with HostGator? Why are you specifying the gator1350.hostgator.com ?
It should remain:
$config['MasterServer']['servername'] = 'localhost';
Like I said unless your on a dedicated setup and have been specifically instructed to do the above then leave it as localhost. I rarely see hosts other than for example GoDaddy that actually require that being specified OTHER than localhost

.