@REDshadowRED Update: ITS the Deco xe75! I have connected a Gigabit switch between the Deco and Ethernet cable. After a short time, the switch switches to 100 mbit instead of 1000 Mbit. Every other...

Hello, I have replaced my old access point, which reaches Gigabit via LAN, with a Deco XE75 3-series set. Access point mode is activated, all Decos (Main-Deco @ Lan @ Router) are connected via...