Three Wyze Bulbs. All three of them are model WLPA19, Firmware version 12.0.273. All three are mounted on a lamp post. Two of them work perfectly, the third one does not stay connected after it has been on for a while. It stays connected when it is off.
Tried to replace the 3rd one with the 4th one that came with the package. I even tried to switch places of the light bulbs on the lamp post, just because I thought that maybe the one that it is malfunctioning had a less favorable location with respect to the WiFi AP. Nothing, same problem. The interesting part is that, all three light bulbs, including the one off-line, respond to ping! So even the one that is off-line according to the app, it is actually connected to the WiFi.
A couple of things I thought: 1) perhaps the non-functioning light bulbs have a problem with heat, which is why they get disconnected when they are on and they stay connected when they are off, even if they seem to maintain simple later 3 network access (I can ping them); 2) they somehow interfere with each other, since they are in close proximity. I haven’t try to remove one of the functioning light bulbs and see if the non-functioning one comes back to life. Neither I tried to put the non-functioning one on another lamp closer to the AP and see if it behaves the same way.
For sure, as others have pointed out, it does not look like Wyze Bulbs are ready for prime time…