Maybe my situation is more unique. I first bought my own cable modem/router with built-in WiFi. Then I found that my Wi-Fi extender, which I had previously used with my DSL router, was a bit outdated and couldn't handle the gigabit speeds of my new wired connection. So my cable modem/router is a Motorola MG8702, so I figured it would be better to use the Motorola Mesh system for better compatibility. Setup was complicated by the fact that I already had two Wi-Fi networks that came with the main router and the extender I previously had. The easiest way to set this up was I had to disable WiFi on the MG8702 and just use this system for WiFi. After doing that, setup was a lot easier and I now have good coverage in an old house with a lathe and plaster walls that block the signal quite a bit. I was able to place the two nodes within sight of each other through a couple of doors and walk around the corner to the TV so we had good streaming performance. You probably have to see the house to understand. I gave this 4 stars instead of 5 because Motorola's setup documentation is pretty useless in my case. I had to figure it out myself, through trial and error.
Wi-Fi router Keenetic Air (KN-1613), white/grey
26 Review
Wi-Fi Mesh system Tenda MW3-3, white
18 Review
Tenda Nova Mesh WiFi System (MW3) - Complete Whole Home Coverage, 1-Pack
25 Review
Get Superior WiFi Coverage with TP-Link Deco X20 Mesh System πΆ - Covers 5800 Sq.Ft, 6 Ethernet Ports, Wired Ethernet Backhaul Supported (3-Pack)
19 Review
π StarTech.com NETRS232 Serial to IP Ethernet Device Server - DIN Rail Mountable - Serial Device Server - Serial Over IP Device Server (Black)
4 Review
π uni USB C Hub with Ethernet Adapter, 4K HDMI, Gigabit Ethernet, and 3 USB 3.0 Ports for MacBook Pro, iPad Pro, XPS
11 Review
π CERRXIAN RS232 to Ethernet Serial Device Server - TCP/IP Converter with 1Port DB9 RS232 Serial to Ethernet Connectivity
3 Review
π StarTech.com NETRS2321P: 1-Port RS232 to Ethernet IP Converter, Serial over IP Device Server - Black
5 Review