Long time Gen1 guy here. Just bought a Gen 3. Installing it today. Could NOT get that thing to connect to the wifi for the life of me. I tried everything I could think of. NOTHING worked. Spent a couple hours on it. I was about ready to box it up and send it back. Finally, I saw someone here posted to simply try another device (I have been trying it on an iPhone 11 Max running 13.4.1). I decided to try my iPadPro 11 (running 13.4.1). Bam! It work flawlessly, on the first try. Working great. So… It is definitely worth trying to use a different device.
Just FYI, my wireless network consists of a Synology RT2600/MR2200 meshed network with a single SSID for all nodes and antennas (2.4 and 5.0).