
App shows eeros offline - yet all are online

Needing help this evening. Everything was smooth sailing.... but...
Currently 5 of 6 eeros showing red and offline in the app... yet they are all online, showing white lights on each eero, and all 40+ devices are definitely working (10 cams showing offline in the app are working fine).
The main gateway (Office) is showing red in the app yet it's working fine with no red lights on the eero itself - I can send this email and see my online Nest cams etc.
So what's going on ? It's happening on both my iPhone and iPad. I've power cycled the Office gateway but the app is still showing error messages despite everything working ok.
I've sent a request to support but they're closed until the morning.