I have two RPi based Volumios running version 2.806. Both work fine via the web pages, but the Android App only shows one of them and there does not seem to be a way to switch to the other.
I saw several posts asking similar questions (from 2018), but no answers.
I also note that while I can go to each Volumio via an independent web page, neither one seems to know about the other. Posts mention that multiple units show under the “multiroom” area of the GUI, but I have not seen that. And I have poked around in the settings, but don’t see a way to turn that on, or off.
What is it that I’m missing?