Error 006 0612 3DS MH4U

[Luffy999]

Can someone help me?
Background: Yesterday I was playing MH4U without any connection issues, and today when I try to join a game I get this error. I can create a room and people join without any issues, but I can’t join any room. I always get this error message. It didn’t happen to me yesterday.
Any ideas?

[GamersInternatio]

Can you check your NAT type for me?

[Guide] Detecting your NAT type on Wii U and 3DS consoles

[Detecting NAT type on Wii U and 3DS (Guide)] Before I begin, I would like to thank @piplupness and @PN_quarky for helping me test this, as well as some initial information posted by @numerofoxtheglaceon_ on Pretendo’s Discord server. I initially started working on this after information was very vague on how to decode a code that the Connection Test outputs, all I had to go from when I started was a message on a Wii homebrew forum. This is by no means complete yet, we still don’t fully know…

[Luffy999]

My NAT is type B, and I still get the error.

[Joshua8600PNID]

Is this still an issue?

[Ballout3z]

I’m having the same problem bro

[Joshua8600PNID]

Is this also with MH4U?

[Ballout3z]

Yes people can join my created lobby but I can’t join there’s

[Joshua8600PNID]

That sounds like a NAT type issue then, as that more limits joining than receiving.

[Guide] Detecting your NAT type on Wii U and 3DS consoles

[Detecting NAT type on Wii U and 3DS (Guide)] Before I begin, I would like to thank @piplupness and @PN_quarky for helping me test this, as well as some initial information posted by @numerofoxtheglaceon_ on Pretendo’s Discord server. I initially started working on this after information was very vague on how to decode a code that the Connection Test outputs, all I had to go from when I started was a message on a Wii homebrew forum. This is by no means complete yet, we still don’t fully know…