If you haven't already done so, take a read through some of the other threads, especially this one:https://www.axiomaudio.com/boards/ubbthr...n_2.#Post430992
I have two Android units (Google Pixel2 and Nexus10) and was struggling to get everything working with wifi and the N3. The software updates helped a lot and since they added the Bluetooth, we've used that mostly for connecting so we can also stream music from Youtube.
I've found that trying to connect via the wifi had more steps than the BT method but i went through glitchy trials as well until this past year.
As noted in my posts, connecting via Apple products was infinitely easier than using Android. I also had some snags with BubblePnP but since the last updates and using BT as mentioned, things cleared up. I'm only using the free version of Bubble so it has some limitations.