David has a router/modem combo. Is this common? Leo says it's common for an ISP to provide those. But keep in mind that he'd be paying about $10 per month to rent it, and it's likely not as up to date or fully featured as one you can buy. That's why Leo recommends buying a separate router and modem. DOCSIS 3 or 3.1 should work. NetGear is recommended by TheWirecutter. Just make sure the gear is supported by the ISP, and call the ISP and they have to "ping it" and disable the rental gear.
Irwin is trying to partition a laptop hard drive remotely. But he can't do it and reinstall Windows. Leo says one thing to try is defragging the hard drive to give it all the unoccupied free space it needs in order to reinstall Windows. The Chatroom says one thing to do is use the GPT partition. But Leo advises against it. Windows knows what it's doing when it's installing Windows, so trust it to give it the proper partition. Should he go to DOCSIS 3.1? Leo says yes. It has some power management features that will reduce buffer bloat and save energy. And DOCSIS 4 is on the way.