Problem with FB 7430 as Access Point (in german and english) : r/fritzbox
Connecting the FRITZ!Box with the Mesh Repeater (cascading) | FRITZ!Box 7430 | AVM International
AVM Fritz!Mesh Set International (Fritz!Box 7530 and Fritz!Repeater 1200, Dual-WLAN AC up to 866 Mbps (5 GHz) and N up to 400 Mbps (2.4 GHz), up to 300 Mbps through VDSL Supervectoring