GyanAccessFreak wrote @Alexandre. X55 - 2 ports. https://www.tp-link.com/us/deco-mesh-wifi/product-family/deco-x55/ @GyanAccessFreak X55 has 3 ports. The link you provided shows 3 ports. Here is...

@Malco You can buy regular 5-port gigabit switch, connect it to master Deco P9 available Ethernet port and have 4 remaining switch ports to connect devices to. TP-Link brand of switch is recommended,...

@GyanAccessFreak I would not recommend XE75. It has many complains on that forum, more than any other Deco model. If I to choose between X60 and X50/X55, my choice would be X50/X55. If choosing...

@Mattjtemp I would suggest different approach. Keep Deco mesh in Access Point mode. Rewire Deco the following way: In Access Point mode, you do not need Main Deco between the switch and modem/router....

GyanAccessFreak wrote @Alexandre. X50: Has 2 ports. 1 POE in and 1 out for wired daisy chain another X50. However I still need to power up both in the X50 in the daisy chain. @GyanAccessFreak This is...

@valiant3600 Well, we tried. There is nothing else that can be done. Dual band (2.4GHz and 5GHz under same SSID) could cause troubles. I have old smart thermostat, it can't handle dual band. Fast...