Thanks for the advice! Your post was the first time I had heard of converting coaxial cables into ethernet. Do you mean by MOCA adapters? I looked into it a little bit and still a little unsure about how it works. I currently have a cable modem connected to one Orbi on the second floor. There is another coaxial cable on the third floor. Can I simply just buy a MOCA adapter and then connect an Orbi router via ethernet on that floor?