Question about Swisscom WLAN Box 2

FYI: The WLAN-Box 2 works natively with the Wingo Internetbox 2 (Swisscom). It also works perfectly with a Fritzbox 7583 (G.fast). I currently use Wingo G.fast and have replaced my Wingo Internetbox 2 with the Fritzbox 7583 and continue to use the WLAN box, which is connected with a cable.