GLinet M1300 Beryl does not connect to WiFi

I have a new Beryl. When using as a repeater wifi-connection it will not connect to my home wifi. SSID and password are correct.
I use a FritzBox 7490 for the wifi. Many other devices are connected without any problems.
What to do?
Thanks for help me

excuse my bad english

We should have fixed it in 3.216, please try the firmware in the link