@MisterW Many thanks for your insightful post. I set my IoT LAN settings to use Googles DNS servers (8.8.8.8 and 8.8.4.4) and lo and behold, now my Growatt inverter can now use my Omada wifi setup,...

@ashleyh Ahh, i now realise that i hadn't made myself very clear in my previous statement. I meant to say that my Growatt Shine Wifi-S Dongle is running firmware version 3.0.0.2 I am also running the...

@ashleyh I am runnning fimrware version 3.0.0.2, what version were you running and what version did you update too?

@ashleyh Glad to hear that you and TP-Link are making progress with this issue. I am looking forward to hear your update after running with some new DNS server settings.

@ashleyh A quick Google search brings me here, as i am also experiencing the same issue with a Growatt Shine Wifi-S RS232 dongle. I am currently using a completely different standalone mobile hotspot...