I feel like if you and I met we could talk for days. LOL But I'll keep this short for the other readers.
100% agree on POE even without reading another thread. I just can't run a cable without major work. Long story short is I have brick exterior and no room around the door casing. Inside there are walls on either side of the door with similar issue. Would have to open walls and I'm not sure I'll be here that long so not going that route. Plus, every time I open a wall in this house I open a can of worms.
I currently have DB connected to the included power brick for all this testing. When I had connected using existing
doorbell wires outside, I upgraded the transformer already for the Ring DB (which is what I want to replace).
Currently the DB is on the 5 Ghz band and channel 149. I did have it on the 2.4 when outside since 2.4 does better with the brick but still had issues (which is why I reverted to the Ring DB and moved this indoors to troubleshoot. I did do a channel optimization last week since I did see other devices (phones, tablets, etc) having issues but haven't seen that since. The AP has 3x3 MIMO which helps with the "sharing". There is only one old tablet that uses the only "n" standard and it is turned off when not in use and almost never used.
I did connect those 2 other cameras and only had 1 NoSignal between the 2 of them and one of them is on the other side of the house (many walls away). In that time the DB had 6 No Signals with all 3 devices connected to the same AP. That makes me lean towards the DB or DB Wif being the issue.
I'm going to connect the ethernet cable next and see how that goes. If that fails then I'll have to get a warranty replacement.
Not DB related...
I've recently thought about converting to Omada AP's since they offer MAC Authentication Bypass (so one SSID but multiple VLANs for the different IOT). I even bought the 610 for testing but that didn't work. When I contacted support they said the only AP that supports the MAB is the 660HD. They said the others will eventually get it but they don't have timeframes for the firmwares so had to return the AP. That's the luck I've been having lately. Hence "AlwaysSomething".