I am trying to get to a website: https://www.xxx.xx.xx:444/nursing

If I go through my BM3.8 server, I get a gateway timeout error. If I unload filters, I get the same error. I have an access rule setup that allows HTTP proxy for ports 443 and 444 for secure websites. I have tried setting up a rule to allow the 444 port and I even went to far as to allow ports 1024 - 65535 to see if I could get it to work, but that will not work either. To rule out the host being down, I bypassed my firewall and the website comes up just fine.
Any help is greatly appreciated!