Nighthawk - Orbi Compability problem

Do you have anything else pluggd into the cm1150v? 

many make the mistake of thinking the 4 ports on it can be used. For the average user, only port 1 can be used. 

Here's way.

most isp's only supply 1 public IP address to the modem. It needs a router to assign private ip addresses. 

You can combine ports 1 and 2 for wan port aggregation (orbi doesn't support).

The only times all the ports can be used is if the isp supplies multiple public ip addresses. But again, thats rare in the ISP world and tends to be only business lines. 

Firmware on the orbi? 

Try factory resetting the orbi and CM1150v.

Then unplug everything from both and power them down.

connect coax back to the modem and power it up. give it a couple minutes.

then connect orbi to port one and power on orbi.

give it a few minutes.

try setup. 

Again, make sure nothing else but orbi is plugged into the cm1150v