Despite that promise a quick and secure connection is common to have problems with the router. The signal is zero or limited currency, something that sometimes is related to the distance between the router and the device.
To avoid this problem, D-Link has developed a router with strange signal that reorients to point to devices connected to it. The new line of routers from D-Link have the technology SmartBeam which is in charge of redirecting the signal according to where is located the device and then enable a channel for each of the devices.
The secret of these routers is one of 6 modules independent antenna that allows the WiFi signal reaches every corner of the house.