Hubitat HE and Watchguard

So currently running 12.5.2 of Watchguard fireware on a Watchguard T35 Firewall and it's difficult to reach the hub from outside the network. Sometimes it works but the majority of the time it doesn't. I'm not seeing anything live or in the logs. No errors connecting to ( I've allowed the app to discover the hubitat several times just to force the update to the cloud and I've reserved ip on the network for it. Any thoughts out there?