Yes, there are compatible with each other.

@Mgadi Hi， Sorry for the delay. Currently, Deco M9 Plus does not support Wi-Fi schedule and this feedback has been reported to the senior engineers for further evaluation. And if possible, you could...

@Zuskie Hi, Thank you very much for your kind reply. Sorry for the delay. After checking, the firmware 1.1.8 build 20191102 is the specialized firmware for the PH version. It did not add the web UI...

@LittleBro Hi， You could consider the Deco as an agent for the devices connected to its network. It would forward the request on behalf of his clients to the NAT gateway. Thank you very much.

@al6000al Hi, please try to manually update the firmware via web interface: https://www.tp-link.com/support/faq/2641/ and the latest firmware: Deco M4_V2_200918...

@Ash1973 Hi, If possible, would you please do a screen-recording about the network optimization? And since Deco M5 supported band steering, so normally not all the 35 devices are connected to the...