@chris7of9 Hi, the WPS feature Is on the Deco APP(More>WPS). You just need to find the nearest Deco unit to the printer and press the button on the APP to enable the WPS feature....

@Giovanni.1986 Yes, but the signal source is selected automatically and once Deco detected the Ethernet connection from the main Deco, Ethernet backhaul would be prioritized. Thanks!

@Jainesh Hi, thanks for your update. It is very likely the 2.4ghz Wi-Fi module on the 2nd Deco has been broken. Please wait for a while and I might need to check with the engineers to see if there is...

@Joepke Hi, Could you please help me draw a picture of your whole network structure from the modem to the switches？ By the way, did you mean that the QoS could not be disabled on the Deco? Thank you...

@Steenberg Hi, Have you tried to use the network optimization to improve the 2.4ghz wireless channel to see whether it helped or not? And did all the 2.4ghz only devices have the same issue? Would...

@Silvrav Hi, It is recommended to replace the Deco M4 with the current router and let Deco M4 work as the DHCP router; Thanks!