DNS SETTINGS not possible what to do? (Nintendo switch)?

I have a problem. My problem is that I can't set or reset the DNS on my Nintendo Switch. If I want to undo it, the following is written on it (the information entered is incorrect) although it can't be. I changed it and it doesn't work anymore, I even took a picture so you can see it for yourself. I thank you in advance mfg Gianpiero545

What did you change the DNS server to?

The number.

"The number"? Which number?

Is in the background of the picture.

If you set the manual you can change the number.

https://www.nintendo.de/...96747.html

What did you want to change the DNA to?

default

Enter 8.8.8.8 as the primary DNS server, then select OK.

Use the A Button to select "Secondary DNS Server" and then press and hold the B Button to delete the existing DNS server.

Enter 8.8.4.4 as the secondary DNS server, then select OK.

I can hardly read that on your weird little picture. To be honest, in my free time, which I sacrifice to help you, I don't feel like it either. So again: what have you set that up for?

Thanks

If you don't feel like helping me, you don't need to answer. If you think that you are sacrificing yourself just because you are wasting your time, you don't need to write to her. And I've already explained to you what kind of problem I have.