The ONT may supply a connection for a phone (RJ11 IIRC) , Ethernet RJ45 and an RJ6 MoCA connection for signal to Set Top Box (STB) and router (G3100 in my and Will’s case). This later can be for your internet and/or chat between G3100 and STB (on demand video and TV guide ...
There are two ways to reset your router. The easiest is to press and hold the red Reset button on the back of your router for at least 3 seconds. The second way is in your router settings. Log into your router, as above, and go to Advanced > Save & Restore > Restore Options > R...