@CJE i returned my devices.. When you put them on some spikes.. You can lower temp to around 50C. Could not figure any other method.. Unless you unbox it 😁.. Probably Not... Very good product...

Actually heating oen was the secondary device.

@WarrenTDO Thank you for your reply on status.. i measured 53 C underneath when i have it on 1 cm spikes.. so there is some room under.. i have yet to test the temp when it is flat on the surface......

@cacb ..just a guess... the one that heats up is the main deco ? .. atleast thats my case.

@SrDarkWarrior . i have the same issue with 1 of these two devices. It is running a real hot. i had it over a speaker and.. wonder my surprice... now i noticed that it had "burnt" the paint of the...

@TP-Link Deco Dont seem to work as expected ? .. I have setup where i have two decos M9 connected to root router LAN ports and also they create a new WLAN.. Situation now is that only primary Deco...