I had to reset my AD410; afterwards, the WiFi setup would not work anymore so I had to use the DMSS Dahua app, as someone suggested on Reddit.
Now all is good, except that going to "Doorbell Tone & Volume" shows "Load failed" for the whole "Tone" section. I was able to change this before the reset.
What's going on?

I was also checking out the HTTP API, but I do not know the name of the setting I would use to get/set a value there.
Any help much appreciated!
