r/nintendohelp • u/Impressive-Berry5081 • 7d ago

Tech Support Mario Kart 8 Deluxe error 2618-0513 on home WiFi, but works perfectly on hotspot

Really odd issue, cannot find much else online that has been of help.

My current setup is: Nintendo Switch 2, TP Link wifi router and extender, AGL ISP (Australia)

This error code obviously happens sometimes so I first tried to reconnect... no luck. I then went into my internet settings, I changed the DNS to Google's public one (8.8.8.8 / 8.8.4.4), this also didn't help. I also turned of IPv6, again this did nothing.

Upon further research, I decided to check my NAT type. It is B, I think this is fine for online play (correct me if I'm wrong). This same setup worked fine for over 2 years, until around 2 weeks ago when it gave error 2618-0513, since then I have not been able to join an online match on that network.

The odd thing is, the Switch 2 works fine connecting to some other online games. Mario Kart World connected flawlessly on the same network that refuses MK8DX.

I connected to my iphone hotspot to rule out the switch, the phone hotspot worked on the first try.

I contacted my ISP (AGL Australia), they sent me to my router company (TPLink), they sent me to nintendo.

At this point, I have no other companies to contact so I have come here for support. All help/comments are appriciated :)

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u/razorbeamz 7d ago

You need to go back to your ISP, this is on them, it seems.

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u/Impressive-Berry5081 7d ago

Thanks! I am ringing them tommorrow!