I tried to go to a minecraft server on nintendo but it did not work

Here is a thread that might actually help with your issue: I can't join minecraft servers on nintendo switch - Microsoft Community

tried this now and definitely doesnt work, also disconnected minecraft account rfom nintendo switch and still doesnt work

Got the same problem...

spent around 2h trying to get it to work today on 2 different nintendo switch, just does not work, something buggered with the Nintendo Switch Minecraft version.. for reference this is what I have tried today:

1. Running the minecraft bedrock server version 1.14.1 on ubuntu in a local network.

2. connected successfully from Android, PS4, Win10

3. Tried from 2 different switches connecting to the same access point as android and PS4. Tried both with the same MS account as was used on the PS4 as well as a separate one. tried both switching the whole "local network vs online" switching several times
in different ways.

very disappointed that I could not get it to work as the purpose was to have a kids birthday part with 7 boys playing together in one world locally.. I already bought Minecraft 4 times on different platforms.. and the promised "will work everywhere" appear
to be greatly exaggerated

Hello there.

I'm happy to help with this, after a quick google search I found the solution that may help you from Nintendo's own forum.

Nintendo's Support Forum

The solution the user themselves have noted as appearing to work was as quoted:

"What I did was change my Microsoft account password then sign in with it, and then put in the Minecraft code onto a computer not a phone. I have been struggling
with this issue for so long but when I did this it almost immediately worked! I hope this helps!"

Try this method, if that doesn't work, try posting the same question on Nintendo's Support forums.

By a switch I meant a Nintendo switch and when I get Minecraft invites instead of going to my Nintendo switch it instead goes to my mobile account on minecraft