Troubleshooting your Cox Wi-Fi Check your router and modem lights. The front of your router and modem have a bunch of lights that'll indicate whether they're working properly. ... Find your Cox Wi-Fi network name and password. ... Reboot your wireless router. ... Take an internet speed test. Cox Troubleshooting Guide | Wi-Fi, Internet & TV | CableTV.com Cable TV https://www.cabletv.com Cable TV https://www.cabletv.com