Sam has an ARRIS cable modem and when he's plugged it into his router, he's not sure what the lights mean. Leo says that one is for connecting to the cable company for internet access. If it's off, he's not getting access. There's also a "link light" which will be solid when connected via ethernet, and when data goes back and forth, it blinks. Then there's the uplink and downlink lights. The manual should tell him what they mean. If one is off, then he'll know where the problems are.
Dave's cable modem is failing, so he's looking to get a new one. Is the Arris modem good? Leo says absolutely, but he'll want to be sure to use one supported by his ISP. Leo uses the Arris Surfboard 6183 DOCSIS III modem. It's the fastest protocol. The Wirecutter has a pretty good listing of the cable modems that are available and they like it.
Steve got caught up in the terrible handover from Verizon FIOS to Frontier. He cancelled his account and has decided to go with Time Warner Cable. Leo says that's the good news, that he has an alternative. All too often there's a virtual monopoly between cable providers in the area.
Cam has an Arris Wi-Fi router hardwired into his computer, but he can't modify the settings. Leo says he should be able to. He should call the cable company and ask them for the password to access the router. Or, instead of using their router, ask them what third party routers they will support and he can buy his own. He'll want a DOCSIS III.
Check out this app: Snoop Snitch in the Google Play store. It will tell him how secure his router is.