I just received my CR700 yesterday and connected it to my cable, authorized it with Spectrum, and got into the management page to configure the SSID. Everything seems to work fine, except that whenever I go to the Advanced tab on the management page I get blank details. When I try to click on any of the menu items, the router restarts itself.

I tried from multiple devices wired & wireless, different browsers ( chrome, edge, IE, even Safari) and always get the same result. It seems like a firmware problem, but I can't even get in the screen to check for an update.