I am a customer of cable Germany and have unfortunately only a Motorola cable modem. Meanwhile, I have bought myself a smartphone and wanted to at times also via WiFi Inet. But since I only have a cable modem, which was difficult :) The customer service of KD wanted a Fritz Wlan Homebox aufschwatzen me that would have cost me once 30 euros and + 5 Euro / month. I was told that I could not get access to something else. All cheese) So I ordered my DLink this device, the delivery was 1 A fast. And now the best. A manual is not necessary. First you install the software from the CD, and then performs an installation routine through all the steps. Easy installation. After scarce five minutes it was all over and I had wifi. One must not intervene in the cable modem, nor any settings in the WLAN router to make. However, for initial setup is necessary to connect the wireless router to a LAN cable to a notebook or PC. Foolproof installation. Who still making as wrong ..... :)) So can only recommend the device.