Dave has an HP 6700 printer, which keeps disconnecting from his network. Clearly, since Dave has replaced the router and modem, then the culprit is the printer. Try a wired connection, but it also drops off the network. So that eliminates WiFi congestion as being the problem. It sounds like something has gone wrong with the Network settings on the printer and since printer is several years old, it may be time to replace it. You could also try downloading the latest firmware and installing it. That can often solve issues like this. Do that before you go buy a new printer, at least.
Louis is watching baseball games streaming online and sometimes the feed stalls. Leo says that's called buffering, and sometimes a packet drops and the feed will wait to see if it shows up out of order. Then it will insert it and move on. Sometimes, though, it just gives up and continues. There are some causes of this, including congestion from a wireless connection. But Louis can get a dual band router and use the 5Ghz band, or just connect to the router with an ethernet connection. The stream will be more reliable that way.
Matt is building a new house and has run cat 5 ethernet around the house. But should he also use a mesh router? Leo says he uses Eero at home, but here is one mesh system that's great specifically for Matt's situation: Plume. Plume sells tiny little access points that plug into the wall with an ethernet port. It's still part of a larger mesh network, but it creates very localized access from the ethernet.
Jeff wants to extend the range of HDMI to other parts of his house. But when he does, he starts to lose signal. What can he do? Leo says that Baluns are good for that. It stands for "Balanced/Unbalanced" and it will convert HDMI to ethernet and back to HDMI so that he can stretch it hundreds of feet with no signal loss at all. Jeff should check out Monoprice.
While Wi-Fi is more popular and prevalent than ever, it's still no match for a hardwired ethernet connection. But many of the new routers, especially mesh routers, don't have many ethernet ports built into them. Fortunately, if you have at least one ethernet port, you can expand that to as many as you need with a "Switch". Netgear makes some quality switches, but any unmanaged networking switch should work just fine. They all are very easy to use, as long as you get an unmanaged Switch.
Kevin needs to have more than two ethernet ports on his router and his mesh router only has two. Leo says he can get an ethernet switch or hub that can expand the amount of ports. Leo has one with 24 ports! They're all easy to use, and the best part is they're all the same. NetGear makes a good one. But any one will do.
Brian has a workshop that's about 70 feet from the house and he needs to extend his Wi-Fi network. Obstacles like doors and walls get in the way of the signal. What can he do? Leo says to string a LAN wire out into the ground.
Jeff is building a house and he wants to know the best way to wire up the house. Leo says that if he has bare open walls, he should put in conduit. That will future proof his home for whatever comes down the line. Then he can run Cat6 Ethernet, if he can afford it. Cat 5e is just as good, and more affordable.
Trevor has a Netgear modem connected to his Google OnHub router. Everything works fine except for an old laptop. Can he connect hardwired to a repeater? Leo says that a second Google device would work because they have two ethernet ports.