I have several Revotech cameras in use but no experience using a NVR as I only use in Blueiris and via browsers. Initially they have default IP addresses of 192.168.1.108 and 192.168.1.113 from which I found using ONVIF (great free program). I login via browser and change them to a fixed IP on...
If the rats left any wire on the cameras female RJ45 connector simply use an ohm meter and map out the colors for each of the 8 pins. I normally just use a punch down female connector for repair.
I have a different model but EVERY IVS rule that I create seems to turn on alerts and lights and I have to turn them off on each. It also applies to every PTZ preset.
That is sorta similar to how the found the Idaho shooter yesterday. I read that they monitored cell phone activity and looked for signals which were stationary which lead them to his location.
I have a few of those Revo's which have been working great for years in Blueiris.
I would never take a chance on an update which could render them useless.