3ds problem error code 006-0612

Goron

Koopa Troopa
I've been getting this when I do worldwide on MK7. I've already enabled DMZ on my router and I still get the error. Any help?
 
I typed it in support.nintendo.com and if says you could not find an Access Point.
 
Maybe your Router isn't good enough for Online Gaming, or just to far away.
Try moving closer to it, if that doesn't help, it's likely the first one.
 
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