Nintendo new 2DS XL can't find my WLAN?

I bought such a Nintendo device and would like to connect it to my Wi-Fi, it shows all possible Wi-Fi connections from the area, but not my router. (Even if I hold it 10 cm next to it)

I'm at Vodafone Kabel and therefore I have a cable router.

I have also found the following page https://en-americas-support.nintendo.com/...rity-types

Supported WLAN formats are listed there, for my device they are:

2.4 GHz

802.11b, 802.11g

WEP, WPA-PSK (TKIP), WPA-PSK (AES), WPA2-PSK (AES)

Now I have made the settings in the router as in the pictures and it still does not work, is not recognized.

Can anyone help me further?

I also wanted to say that it is S ____ ß that a device that is not that old can't simply connect to the Wi-Fi like everything else, from a multibillion dollar company…

At 2.4GHz where the channel is set to automatically select anything between 1 and 11. Often, channel 13 is automatically selected here in Europe, which is not supported by the DS.

Unfortunately it doesn't work, no matter what setting, it just doesn't appear: /