Ubee modem/router, laptop won't connect - Time Warner Internet

This question is about "Ubee modem/router, laptop won't connect", with Time Warner Cable internet and apps. So we recently exchanged our old modem for a new modem/router from TWC. Desktop connection is wired & good. Tablet/phones are wireless & good. My BFs laptop will connect through wifi, but not wired. He strongly prefers it to be wired. Cables are OK. Does not seem to be a "home group" issue. Tried to release/refresh the IP address but I swear it won't give me a DOS command window.

This topic covered Ubee modem/router, laptop won't connect, and TWC cable internet service.