I set the cameras and the NVR not to auto reboot. Hopefully, that will not create any problems. Rebooting the cameras once mounted could be a bit of a hassle. I guess I could just unplug the poe ethernet at the NVR.
Interestingly, now the cameras seem to work fine on the "Private" manufacturer setting which seems to come up by default. I don't think I changed anything to cause this. Previously, under the "Private" setting the cameras showed up in the remote devices table, but were listed as unconnected and without video feed. Now they are showing as connected and feeding even though I didn't change the manufacturer to "ONVIF".