Misc 3ds mario kart multiplayer problem

[dust213dust]

I have new 3ds xl 11.13.0-45e on luma 2.4

I havent played mario cart 7 about a year. Multiplayer then was working ok, but now it tries to connect and then gives error message that is attached to this post.
Can anyone tell me what might be causing this?
Mario kart multiplayer is version 1.1.
If its ban how can i check it for sure?
Or maybe something need to be updated?

 

[dicamarques]

Have you changed your DNS on the 3DS?
https://en-americas-support.nintend...l/a_id/4204/~/error-code:-006-0501-–-006-0502

 

[dust213dust]

This worked !!! Thank you very much! Ill