Reassuring that others are getting this error too. I think it must be an issue at Fox's end, although their "Cloud Services Monitor" page isn't showing any issues.
Mine went offline around then too. Hadn't seen this post so submitted my own one describring the same problem.
Would be great if the service status page (https://monitor.foxesscommunity.com/status/foxess) was easier to find! A google search got me nowhere; only just seen the admin post above ...
I have a AC1-5.0-E-G2 inverter, 10kWh battery and data logger (dongle W6 version 1.04).
For the past 4 hours the FoxCloud2.0 app has been showing as "Offline OFF GRID" with all numbers showing as 0w. Both Inverter-1 and Battery-1 are showing as offline, but the dongle is showing as online. At ...