AR750 #1 had to be resettet after several trials

As i wrote hi works fine;

The “only” problem is, that he ist not administrable per Web-Browser or SSH.
Hi is connected via WAN Port to my Fritzbox6591. He has get via DHCP the IPs 192.168.9.17 and .217 (WLAN)
I know, that 192.168.9.x is the Standard Guest-Net of the AR750. But I can’t change my LAN adress.
In the AR750 Guest-Net ist set to 192.168.117.x