ISP says they are pushing DOCSIS 3.1, Modem Says Differently, Arris Agrees with ISP. Introduction For starters, I live in an apartment complex that only has one ISP available (Cox). I purchased a SB8200 and a TP-Link ARCHER AX20 for the upgrade of service I was getting through cox. Number 1 Red Flag: The mobile app (SURFBoard Central).. I mean what a waste of time. This app serves no purpose other than showing you a email link to download a desktop app named “Fing” like who cares lol. Number 2 Red Flag: Upon reading the user manual, you can see the LED status screens on the front: USER MANUAL The plan for my internet is set to utilize DOCSIS 3.1, however the LEDs on the front all line up for 3.0. Troubleshooting: Obviously, restarted the modem Checked connections Use proper cables Interface Status Screen Side note: what a pain it is to get to this screen. Upon finally checking the status screen, I am met with these numbers: DOWNSTREAM CHANNEL STATUS I do not know if these numbers are correct, but one other note I had was on the “Product Information” screen, it list