I had to disable Fast Roaming on my Deco after struggling A LOT trying to understand why the heck my HP DeskJet 2774 refused to connect at its the last setup step, given it already knew the old SSID...

@Momcho @TP-Link this is just nuts. I'm on the same scenario - bought the M9 Plus instead of other brands because, among other reasons, I thought I could extend my home automation scenario with...