Nintendo Switches (2) - Getting NAT type D and connection issues
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Have two Nintendo Switches, have been running pfsense for a few months now after my home router was acting up, and mostly things have been running well. Did notice that Splatoon would often get a lot more connection errors, but that was about it (and about the bulk of the online gaming for the switch, mostly everything else is single player gaming). Recently tried firing up MarioKart for the first time in awhile and we can't get any connection in that game at all online, error 2618-0516, which led me down the NAT error route. My troubleshooting thus far:
Set reserved IP's for these devices in DHCP (PiHole runs my DHCP server)
Under Firewall -> NAT -> Outbound
set to HybridNAT with the following rule for StaticPort (Believe this should take effect for the range of IP's needed)
and also enabled upnp (though saw post saying this may no apply for Switch anyway) which the following for approval
Always end up getting NAT D and connection errors. For a test I pulled out my 10 year old backup wifi router. Instantly got NAT B, and was able to get right into a MarioKart race online. Anyone have any suggestions on what I might have gone wrong or be missing?
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Have you read through this yet? https://forum.netgate.com/topic/112631/nintendo-switch-needs-static-port-on-its-outbound-nat
Try changing your CIDR from a 29 to a 32
Using the settings, the home Nintendo switch is able to get to NAT 2. No universal plug-in play is necessary, at least for me.