Airport Extreme 802.11n Drops Connections

I recently bought this beautiful piece of hardware.
Gigabit, 802.11n, USB port for HD, stability, power, design…
But I quickly ran into a problem, the wifi connection was dropping after couple of hours.
Nothing I could do about it but rebooting the airport extreme.

Really annoying, as I bought this device specially for more stability and power with wifi.

Here is the solution : Disable IPv6 in the router config which is enabled by default !!
(Manual Setup -> Advanced -> IPv6 -> Local-link only)

Really it works! That’s the default setting on Time Capsule.