@NewPaul What is the current network diagram? How do you connect these devices together? Can PS4 detect the Deco network? Is there any error message if it failed to connect to it? Try to disable fast...

@mattyB So the current network diagram is main router--Main Deco--switch--other slave Decos. What is the operation mode of the router and the main Deco? Are they all router mode? With main Deco...

@Onizukas Regarding to the number of devices which can connect to the Deco network, please refer to https://www.tp-link.com/support/faq/1589/ . While we need get internet access to make Deco M9 plus...

@LeonardHeul Hello, if you want to connect all the three Deco to the main router by wired cable, you need configure them as access point mode. And you need put the mode, in modem router mode. For the...

@dippy Hello, where did you see this message? You can show us a picture. Besides, for your information, 50443 is the service port of the TP-Link cloud, so it should be fine. Good day.

@ragnakore Yes, please click fliter level-Apps/websites, and hit edit and remove facebook; after that, please click save. Then try to reboot your daughter's phone or laptop and verify whether it...