Really? That wouldn't be anything arris is doing. That's something Cox is doing. When you reboot the modem, you're clearing its configuration file. Without the configuration file from the ISP to either disable or break the diagnostics gui then it works. As soon as the modem boots up and connects us to Cox's Network, it has to download the config file to know what kind of service you get and when it does so you lose the ability to access that page. I hear that. Port 8080 is still open like when you do a scan but I don't know if the UI works. And either way, that data isn't as important as the signal level and logs. What model modem do you have exactly. The s34. What hardware version? Also, do you know if you could access the diagnostics with the coaxial plugged in but before you registered the modem with Cox? I wonder if they modified even the default config that loads to lock you into the walled garden that asks you for either your account information or to pay your bill. The main modem I heard about doing this was the sb8200 which is also an Arris modem. I think the only reason they chose to do it with this modem is because is probably one of the most popular retail modems that there is. I think there's only two, maybe three different DOCSIS tuners made by either broadcom or Intel that all the different manufacturers use. Everything else comes down to things like the heatsink the case, the size the firmware basically little stuff. Even the gateway that Cox uses isn't made by Cox of course. There are actually two different manufacturers of the hardware and I think it depends on what area you live. But there may also be some overlap. They're pretty much identical though I have not heard of a single difference. The cheaper modems these days seem to use Intel chipsets so I have to think Intel chipsets are cheaper. But it could also have something to do with licensing or other things that come into play like how cheap it is for a particular cheap design to scale up. There is talk that there will be a strong push away by the isps away from using retail modems with DOCSIS 4.0. I hope more isps invest in fiber then trying to squeeze any more juice out of the copper Stone.