I have as a basis the Devolo dLAN 500 AVmini. This I once on the top floor (two storey building) connected to the router and one in the basement. Thus I dLAN on the socket with nearly lossless speed (25.oooer in the attic and in the basement about 20.oooer DSL). Since this is an apartment building, not a single family, I was not sure if the current cycle is the same. Behold, he seems to be there. Since I have rented the ground floor apartment of a close relative, it offered to supply the apartment with Internet. So I bought the device here (Devolo dLAN 500 WIFI) and have it put on the ground floor with my tenants to the outlet. Have the encryption key is pressed (in the attic above also) and a few moments later, the devices have recognized themselves. Just as quickly, the WiFi Key standing on the back of the password, for example. Entered in the iPhone and lo and behold ... works. Again, almost no Geschwndigkeitsverlust. The app store, and the site to get the device settings are also achieved fine. If it does not work right away, have the once in their own home to quickly find the settings or the so-called. Perform "plug-in-out" principle. If the device is "dongelten" you can then at any other outlet in the building, the place called device here. It's top processed and offers on top of that the possibility to grant guest access and eg. A Smart TV to connect (ethernet cable provided). My Devolo dLAN 500 AVmini are already in the third year, so I also think of the durability is only positive to report.