@vletroye Thanks for your requesting. There is some misunderstanding. Actually you can connect them as what you mentioned to boost the wifi signal and create the mesh network. Per I said on that...

@Amo Is it still connected to the Deco's wifi but no internet access or it disconnects from Deco totally? If it is the former one, please click here to get the IP address and gateway from Deco at...

@Medoxz Hello, one Deco can be bound to one cloud account only for security and privacy, while you can add manager account except the admin one. https://www.tp-link.com/support/faq/1597/ And multiple...

@shahjrahman You are welcome, glad to help you. And thanks a lot for your support. If need any further help, be free to let us know. Best regards.

@HenrikB Thanks for your reply. Try to simplify the network diagram, that is to say, connect the main Deco to the modem only and try to connect the PS4 to the main Deco and verify whether it work....

@JRendlert Hello, you can change it to 3G only to test whether it works. Otherwise, per I mentioned above, we have released a beta firmware which you can install and test whether it works. Best...