@TUMAS You need to supply one more piece of information: why do you consider Deco? Is it because of its features such as parental controls, or just to have WiFi mesh that will cover house? Deco can...

@Eladeb You may wish to check this: Currently, we have a beta firmware for Deco M5 which could help satellite Deco to find the best uplink Deco and optimize its signal source.

@Pispidoor If you would like suggestions on improving device roaming performance, meaning helping devices (laptops, mobiles) select closest Deco node with strongest WiFi signal, here they are. But,...

@iandb It looks like you may need to increase value of QoS parameter to match your new Internet speed. There is TP-Link FAQ article on that topic: Using QoS feature of Deco

@90profx I am as stumped as you are ... this should definitely work with no issues. A switch is usual suspect, but you said you tried different switches with same result. The only thing I could...

@MikkieMikk I run my Deco mesh in Access Point mode since I bought Deco M9/M5. I have configured my network to my liking before I deployed mesh, but was not happy with WiFi signal. I prefer to follow...