Richard's old 2008 Mac will knock other devices off the network when he downloads something with it. Leo says to make sure each device has its own IP address.
Frank has been watching Leo's podcast This Week in Google (TWIG), where he talked about wiring his home with Cat6 Ethernet. Everything is wired for better streaming and no congestion. It also included home theater equipment called "Araknis" which enables a tech person to dial in and fix anything wrong or set it up. Leo wasn't a fan because he never got credentials to do it himself. So, he had it removed in favor of Ubiquity's Unify system. It works great.
Frank was thinking about getting the Araknis though. Leo says it's expensive. Leo recommends the Ubiquity UDM Pro.
Vip wants to know if he should wire his home with ethernet cable while he has the walls open. Leo says ABSOLUTELY. And use Cat6 while you're at it to future proof it. Hardwired is always preferable to WiFi and it'll be faster, have far fewer dropouts, and no congestion. Leo just did it himself. We're lifting a lot more data now with WiFi and IoT smart devices. There's a lot of congestion.
If you have a challenging wifi environment and can't afford to wire your home, Leo advises going with a Mesh router: eero, Netgear's Ubiquity, even Asus has gone mesh.
Amy is a second-grade teacher and they are getting ready to head back into the classroom for doing zoom calls to her student. The problem is, her wifi hubs keep dropping the internet signals. She's told her cordless phones are causing the problem. Leo says it could be, depending on what frequency the phone is operating at. 2.4 GHz is a very congested spectrum and cordless phones operate on that, so it could be interfering.
But Leo suspects there could be other problems as well.
Bob has the Orbi Mesh Router and has a second router for work. Leo says you want one router to be in charge. Leo says your cable ISP wants to be in charge because they use their router to provide WiFi to anyone walking by. Then your work wants to be in charge because it can control everything. In general, you only want one router handling all the DNS address assigning. Leo recommends putting the Orbi in Bridge Mode, and that will prevent both routers from fighting to run the network (called "double natting").
Roger has decided to build his own router as a project using an older computer. What would be the best operating system for it and how should he configure the LAN? Leo says that's a project that Leo has wanted to do for a while now. Steve Gibson has also talked about the DIY router project and uses PF Sense and the NetGate SG1100 with an ARM chip to run it. He likes it a lot and it's open source. It's the way to go. You could also use a Raspberry Pi.
Johnny has an Eero mesh router and is attaching his HD HomeRun DVR to his network through powerline networking. Will he have issues with configuring it? Leo says that the HDHomeRun software should do it automatically. But if he's doing it manually, he can go into Eero settings under devices and see the IP addresses of each device. But the HDHomeRun has automatic discovery. It should connect to the network on its own with no manual entering.
Bob recently bought an eero mesh router. It worked fine for two weeks and then he started experiencing dropouts, and he can't get support. Leo says that support is terrible these days because of limitations due to CoVid. Another thing to look at is your ISP and cable modem. Security software could also be an issue and can inhibit your internet access.
Cherry wants to know if a mesh router would work in a house made of concrete blocks? Leo says that concrete blocks need rebar to stay standing, and rebar turns your home into a Faraday cage, which blocks wireless signals, and that means no WiFi outside of the main room. It's death to WiFi, so Mesh may not help at all. But that isn't the only solution. Leo says that if you have CoAx in your home, you can convert that to wired internet. You'll need a NOCA adapter (Networking Over CoAx cable). You can also string ethernet, but the simplest solution may be powerline networking.
Bernie has two desktops, one with Windows 10, the other with Windows XP. But they can't see each other on the network. But his Windows 7 laptop sees both. Leo says there are so many things it could be; he recommends going to practicallynetworked.com. It could be the XP machine is using SMB 1.0. Windows 10 stopped using it because it wasn't secure. So chances are, that's it. You can still turn it on though.