• On Nintendo DS applications, you can only use WEP and Open WiFi
  • On Nintendo DSi enhanced/exclusive applications, you have the addition of WPA and WPA2 support

Hotspots are usable, so you don’t need to change your router configuration.

Creating a Hotspot #

There are guides for creating a DS game compatible hotspot on macOS and Linux computers on GBAtemp. If you’re on Windows you can use a Linux live boot.

Nintendo DS WFC Restoration #

  1. Launch the Nintendo WFC settings
  2. Connect to your access point
  3. Set your Primary DNS value as one of the values below, depending on which service you want to use:
    • Wiimmfi -
    • AltWFC/WFCZwei - or
    • BenFi -
    • Twilit WFC -
  4. Set as your secondary DNS
  5. You might need to NoSSL patch your game at this point, depending on the game

Manually Patching Your DS ROMs #

Follow the guide below in case your ISP blocks custom DNS servers, otherwise it is strongly recommended to follow the guide above.

Note: Users of GNU/Linux and macOS can follow very similar instructions, but will have to use mono

  1. Download WFCPatcher
  2. Copy the ROM of the game you want to patch to the same folder where WFCPatcher is saved and open that folder
  3. Create a text file with the name patch.bat
  4. In the file, enter wfcpatcher.exe %1 --domain wiimmfi.de then save and close (you can replace wiimmfi.de with another URL, if you wish to use a different server)
  5. Now drag all the roms you wish to patch on to patch.bat
  6. Done! the patched roms will be the ones ending in (wiimmfi)

Don’t forget to remove any DNS you might have saved on your Wi-Fi settings before attempting to connect with the patched ROM

Troubleshooting and Further Reading #

If you are recieving any errors, you can enter the error code in wiimmfi’s troubleshooter for ways to fix it.

For more specific troubleshooting and more information, such as how to connect to online on emulators, you can read this Wiimmfi Guide written by members of the Mario Kart DS Network.