The modules basically repeat the signal from your main router, they also receive the signal from each other, but they don't work in all cases. In my case, my powerful TP-Link router worked better because the modules were weak and the signal was unstable. Xfinity Support checked this and came to the same conclusion. When they work, you can move seamlessly from room to room and not have to worry about changing the IP address. Xfinity and Revain have good return policies, so they're worth a try.
Wi-Fi Mesh system Tenda MW3-3, white
18 Review
TP-Link Deco X60: Ultimate Whole-Home Mesh Wi-Fi3-Pack with WiFi 6 AX3000
19 Review
Experience Seamless WiFi with TP-Link Deco Whole Home Mesh System - 📶 Covering 5,500 Sq.ft with Parental Controls, Alexa compatibility & Gigabit Ports (Deco M4 3-Pack)
24 Review
Wi-Fi router Keenetic Air (KN-1613), white/grey
26 Review
🔌 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
🔌 USR-TCP232-410s: RS232/RS485 Serial to Ethernet Adapter/IP Device Server with DHCP/DNS Support
4 Review
🔌 CERRXIAN RS232 to Ethernet Serial Device Server - TCP/IP Converter with 1Port DB9 RS232 Serial to Ethernet Connectivity
3 Review
🔌 StarTech.com NETRS232 Serial to IP Ethernet Device Server - DIN Rail Mountable - Serial Device Server - Serial Over IP Device Server (Black)
4 Review