How do I troubleshoot a lack of internet connection on my modem router?
It appears you are using a Cisco/Technicolor DPC3848V (often labeled as Shaw Gateway or similar) rather than the Netgear C3700 described on this page.…
Manuals+ Q&A
WiFi Cable Modem Router C3700 User Manual — questions & answers
Read product questions and troubleshooting answers linked to WiFi Cable Modem Router C3700 User Manual.