Unable to run updates on PBXact

I am trying to run updates on my PBXact system. I am getting this error.

Current Version 10.13.66-20

fopen(http://upgrades.schmoozecom.net/updates.php): failed to open stream: Connection timed out

I checked the Sophos UTM and disabled WebProtection, Opened all ports outbound, everything. Tried again and no luck. Confirmed DNS Servers are working and the unit can ping DNS and IP outside of the network. I wanted to get updates on this machine as this is the one I was having issues with the Ringtones. I want to push the latest firmware to the Sangoma Phones.