- A firmware upgrade to my switch last year enabled some sort of loop detection that would shut off ports that my Google WiFi mesh was connected to (Ethernet backhaul). Support was nice, but ultimately unable to disable that new feature of the firmware. - My original camera NVR was flaky, possibly because of camera flakiness, partly also because it just couldn't keep up with 4 cameras. - Replaced NVR with CloudKey Gen 2, which was fairly nice but then brought the camera flakiness into full view. I would spend DAYS every quarter messing around with rebooting cameras to get them to reassociate with the Unifi Protect server. - A recent firmware update to the cameras left 4 out of 5 of them totally dead, unable to even be pinged, let alone associating with the Protect server.

On the plus side, the Unifi Protect mobile app is easily best in breed. Light years ahead of ReoLink or Hikvision or Montavue (I've played with all of them recently). The BlueIris mobile app seems to be pretty crappy, but I haven't shelled out the money to actually try it (based on the reviews).

I've replaced the switch with ebayed Enterprise gear, Aruba S2500 for <$100. Harder to set up, but did have enough knobs to disable the loop detection. A great PoE switch, plus it has 10Gb ports.

The cameras I've replace with MontaVue 4K cameras, which are amazing in low light. 10x the sensitivity of most other cameras in low light. I also got their DVR, which is ... meh. The mobile app is basically unusable for anything other than live view. The DVR is probably fine if you use it from a keyboard/monitor, but this is for my house and we really want a good mobile app, not some silly console. The cameras though! <chefs kiss>