Close port 4444 to external internet traffic

Hi Forum,

I have an XG firewall that has port 4444 open for remoting into the appliance from the Internet. This is causing a PCI scanning test to fail on a POS device. Our office uses the port to gain access to the firewall without the need of getting on a PC in the office. 

I'm curious to what others are using as options to maintain the device, but keep this port closed to Internet traffic.

Thanks in advance