I've actually problems to connect to the Webadmin and Userportal of two of our customer XG85. I always get this message in the browser:
The services worked till a few days. On one machine there is Firmware 7.5.8 on the other 7.5.11, auto hot fix is enabled. The SQL-hot fix was applied and all passwords changed on 04/25. ssh to both machines is possible.
Maybe some bad side effect with the new Sophos hot fix (captchas)?
I confirm the same problem on the all XG85 in my Company. We can't access from WAN and VPN. From LAN it's possible.