Rachio 3 wifi connection issues

Controller is stuck on first light blinking white, with one red.

I have already been in touch with support via email and done all steps recommended but we’ve been unable to reconnect (factory reset, power down unit etc). Request 686939
Attempted to connect to Google mesh network AND 2.4 GHz Netgear router; neither worked.
Ran RouteThis app - key is WJ8BGQ43
Please help!

Looks like you might have range extender or something else in place?

Can you try creating a dedicated single band guest network?