Finally got some more time to look at this.
Doesn't matter, they're more or less the same, few differences in the initial configuration process. But try EZVIZ app on android, just in case...
I tried that. It is much more intuitive, allows more settings for network config and so on. Different from the one on IOS and different from Guarding Vision on android.
However, that did not finish the config. Same behavior where doorbell announces "wifi connected" and "platform configuration successful" but the phone times out in the second phase
Adding IP manually doesn't solve the problem. But it tells us that the doorbell correctly joined the WLAN. If the app finds it adding it via IP manually it should find it automatically after it joined the wlan. Now that the doorbell has joined the WLAN, when you run the wizard again, it should skip many steps and bring you directly to the last steps, did you try running the wizard again? What does it do?
Running the wizard again from the beginning, by scanning the qr code gives me the message: "Operation failed. The device is not supported"
It shouldn't. Did you try resetting the camera via the specific hardware button? Just to be sure the camera is in a known initialized state.
Yes. I do that every time I run the wizard.
The camera joins the WLAN, and you can ping it, so the 2.4/5ghz is not the issue. I have the same config, 2.4/5ghz with one SSID. Do you have a firewall for outbound internet traffic? Is it blocking the doorbell? Did you try to allow all traffic from the doorbell to internet with a specific rule?
I've tried to add just the same ports as the upnp configured for the doorbell. That did not work.
Then I tried to open all ports 200-12973, 12975-65354 (12974 is reserved for vpn on the Orbi) - this did not change anything.
I even found myself starting to capture all lan/wan packages and starting to sift through it in Wireshark - but didn't really know what I was looking for. Saw a bunch of communication back and forth to addresses in China.
Since the Android ezviz app looked promising I went trough a few tests again.
I tried again to turn off 5g.
I tried moving the router literally 2m from the doorbell as per the recommendations in the app, and turning off the satellite wifi.
I tried turning of my synology box since that had some ports open on the fw.
I turned off all the sonos speakers since my Fing box listed one of the sonos and the doorbell on the same IP address - which we know can't be.
For each of those eliminations I tried to run the Ezviz on Android with the same results.
The only positive thing about all of this is that I got myself some Paulaner Oktoberfest beer which helped me keep my patience.
So I'm open for more suggestions.