Firmware 7.0.0 WIFI problems

I installed the newest Farm OS onto the SD card, configuration through WIFI works but Bot is not connected / blue light blinks after flashing. This is the Farmbot V1.4 XL, it works with Ethernet but not WIFI.
I changed network to WPA2-PSK and websockets test works. Any ideas ? Thanks

I tried older firmware also and moved Farmbot next to router, no change.

So it was the problem of doing it manually, found after going through the forums. Why have this drop down menu in the configurator if it doesn’t work ?