When using Optimum, they provide you with a modem/router. This model was unable to connect with our existing Orbi. The nightHawk cm1200 was easy enough to set up and is working perfectly with our Orbi!
Modem was easy to install. What I didn't know was that I had to contact my Internet Provider and have them authorize the modem on their end. That took a while but after the technician finished and rebooted the modem everything worked fine. And has been working fine ever since.
Great modem! After upgrading to it, I was able to take advantage of my ISPs gigabit plan. Satisfied with the whole process from setting up to utilization.