This product is false advertised. I fail to see how you do not recognise that. Nowhere it says that "default" is router. Also why then have 3 deco set ? 3 devices on a router ? AP mode is default,...

Kevin_Z wrote @AM1 Hi, sorry for the inconvenience caused here. The main network and guest network are isolated from each other in regular router, while they still can access each other in AP mode...

ok i'm completely speechless! I just bought the M4 (in AP mode) and it is made for beginner users (and below). No MAC Filtering, no reservation the advance settings are not advanced. Ok those i can...