Possessor of a Freebox Revolution and satisfied with my previous buy 2 adapters DEVOLO DLAN 650 that allowed me to extend my ethernet access, I always had a problem with the WIFI in my big house with thick walls, on 3 levels . Next forums and reviews from buyers, I decided for the DLAN 500 AV Wireless +. Now I have a powerful and stable signal in 50% of the house and very correct in the other half. Simple to install if you do not follow the installation guide !!! The pairing of the adapters must be by a very short press of the buttons (less than a second) which is specified anywhere and the pairing symbol mentioned in the 1828 DEVOLO the guide is not correct. .. So, as with my previous purchase I called the hotline DEVOLO who told me what to do in minutes. Contact easy and pleasant.