BillG -
It seems like these NVR's have a built-in artificial stupidity when it comes to certain things. Two that come to mind quickly are the inability to get your cameras on the channels you want them on, and setting a camera's static IP address to what you want it to be.
I'd rather not have to go back and read this entire thread, but it looks like your cameras are all on your LAN and NOT attached to ports on your NVR, and that you do your configuration from a monitor (TV??) attached to the HDMI interface. Is this correct? Maybe there is a difference in the way LAN cameras and directly attached cameras are handled, or the HDMI interface, or . . . something.
I have tried several things to get the channels re-ordered and the only thing I found that would work is to physically remove all cameras from the NVR, do a factory reset on the NVR, reconfigure the NVR, do another reboot, check all settings and fix the ones that didn't "take", reboot again, recheck settings again, and then add the cameras back one at a time in the order you want them. Even at that, one false move and you might wind up with an extra channel that you don't want because it is a duplicate of one you already have. Sheez!
The other is IP addresses. I have three cameras that I am testing with, two Dahua and one Lorex. I have finally got the DaHuas playing nicely except for having to run them as ONVIF, and for the most part the Lorex too. Once I have the cameras all running, I go into the cameras web interface and check the "Static" box in the TCP/IP settings for all three cameras, save, recheck, and save again anyway. After an NVR reboot, the two DaHua cameras will still have the IP address I gave them, but the Lorex camera will change EVERY time. A couple of times while I was doing all sorts of testing, the Lorex camera would get the same IP address as one of the DaHua cameras. Obviously not good. Just for the record, I am pretty certain that the Lorex camera is a re-branded DaHua.
Hopefully, DaHua will get their manure in one pile and upgrade the firmware to fix these, and the other problems that people are having.
Wayne