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Author Topic: DIR-878 Strict NAT Type  (Read 3696 times)


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DIR-878 Strict NAT Type
« on: March 21, 2019, 10:40:57 PM »

I've got a problem with connecting to other consoles on my Switch and PS4. Both of my consoles have strict nat types and I've tried everything possible to try and fix it. I've tried portforwarding, turning off UPnP and manually adding ports through portforwarding, I've tried putting IPs into DMZ, none of them works for some reason. I dont know a lot about routers so I'm not too sure if the issue is my router or my ISP.
Are there other ways I could try to fix my strict nat types on all my consoles?

Note that Multiplayer games work like BOPSIII, Tetris 99, but when it comes to trying to connect to a private party or private game, it's impossible.
Mariokart on the switch does not work, Smash Bros Ultimate doesn't work. Please help, I really want to fix this.
UPnP is currently on, and doesn't let me connect to private games. I've got static IPs for my consoles as well.


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    • Router Troubleshooting
Re: DIR-878 Strict NAT Type
« Reply #1 on: March 22, 2019, 06:47:35 AM »


  • Link>What Firmware version is currently loaded? Found on the routers web page under status.
  • What region are you located?

Internet Service Provider and Modem Configurations
  • What ISP Service do you have? Cable or DSL?
  • What ISP Modem Mfr. and model # do you have?

Router and Wired Configurations
Some things to try: - Log into the routers web page at Use IE, Opera or FF to manage the router. Besure to log into the Admin account on the router.

  • Turn off DNS Relay under Setup/Networking. Link>Finding Faster DNS Addresses using Name Bench and input new DNS addresses under Setup/Internet/Manual.
  • Setup DHCP reserved IP addresses for all devices ON the router. Setup/Networking. This ensures each devices gets its own IP address when turned on and connected, eliminates IP address conflicts and helps in troubleshooting and maintain consistency for applications that need to connect as well as mapped drives.
  • Ensure devices are set to auto obtain an IP address.
  • If IPv6 is an option on the router, select Local Connection Only under Setup/IPv6.

How are the consoles connected to the router? Wireless or Wired LAN cable?
Cable: 1Gb/50Mb>NetGear CM1200>DIR-882>HP 24pt Gb Switch. COVR-1202/2202/3902,DIR-2660/80,3xDGL-4500s,DIR-LX1870,857,835,827,815,890L,880L,868L,836L,810L,685,657,3x655s,645,628,601,DNR-202L,DNS-345,DCS-933L,936L,960L and 8000LH.