Currently on a trip to China using the hotel WiFi. 

Occasionally when trying to access GZ I get this screen.

Looks the the cloud service is blocking my access for some reason.

The hotel WiFi is a bit spotty but I don't think this is  a great firewall of China issue. I can normally get around it by turning on a VPN and setting my location to be in the US. As an aside using my Nomad eSIM I can access all Google services fine without using a VPN including search and Maps. That is handy.