Connection Lost - cant reconnect

3 days ago my inverter lost internet connection. Up until then I've had occasional short outages which have usually resolved themselves and want through a bit of a faff last month when I upgraded my router but since then all was fine until 3 days ago.

I can connect to the serial number SSID and then use the inverter settings pages. When I search for nearby wifi it finds a few including 2 that I control (both 2.4GHz only). I have tried both of these with inverter reboots inbetween but no matter what I do I can't seem to make it come back online...

Any tips?

Go for a full reset of the dongle maybe?

See the giv KB site (Google KB dongle GivEnergy).

After setting up the dongle again and rebooting the dongle, give it 15-30 minutes to connect - sometimes it takes a while to start reporting status/data.