Does the Nano also run stand-alone? You read a lot... Or is it effectively just an access point, i.e. an extension to an existing WLAN? I am no longer satisfied with my WLAN router and would like to change to this system. I currently have Quickline as my Internet provider, with a WLAN modem (WLAN is inactive). Apart from the cables, do I need to buy anything else? Thank you in advance :D