@vDex Probably the Deco P9 devices are connected to different electrical phases or through some power strips! Do not connect Deco P9 devices in this way

@pasvasconcelos You don't have any telecommunication or electrical ducts in the stairwell from the 5th floor to the garage ?

@WhiffyUser Your Deco is probably connected to different electrical phases If you had additionaly a Deco M9Plus or X20/X60 one of them could be the main mesh network unit and the P9s would connect to...

@AlonK TP Link should speed up software updates because other companies do it much faster, e.g. Asus

@TP-Link If the implementation of manual signal source selection is so complicated, then maybe the algorithm for setting up connections between mesh APs should be improved, there are many user...

@TP-Link the option to choose the signal source is in the ASUS ZenWiFi AX Hybrid XP4 .... TP-Link, please do this with the Deco P9 software, thank you