They do, and I plan to do so. I just thought I would ask to see if anyone had any recommendations of a particular model. Since I haven't had to buy a modem. When I had spectrum they didn't charge a rental fee, and their stock modem was just a modem, so I had no issues. Now that I'm no longer able to do business with Spectrum and have to deal with cox now. It's a different story. I'll check their list and see what modems are certified but after that may have to ask about particular models to see if anyone knows specifics as far as performance, etc.look at what cox certifies as compatible. They should have a list of third party modems.
Thanks. I had considered that. What's funny is, when I went to look at the apartment today, the cox modem that was supposed to be there wasn't so I had to get a new one from the cox store. Anyway it was a painless process. Either way, the former tenant must have taken the modem which they weren't supposed to do. I also found out that according to Cox support, they don't recognize the Asus RT-AX86U as a compatible router with their Gigablast plan. They recognize a few Asus routers, but they are the GT series. Since I was told I can change the SSID, and password with their router, and they separate the 2.4, and 5Ghz bands, I'll use it for a while and see how it does. If I need something specific then I'll go the route of my own modem and router again.