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How to fix the Nintendo error code 2123-1502?

Alton Alexander
By Alton AlexanderUpdated on June 4th, 2022

This error code indicates that there is a problem with the Nintendo Switch console's wireless connection. The most likely cause is that the console is not properly connected to the wireless router. Make sure that the Switch console is within range of the router and that there are no obstructions between the two devices. If the problem persists, try restarting both the Switch console and the router.

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1. Restart the game

  1. From the Wii U GamePad, launch the Wii U Menu.
  2. Select System Settings.
  3. Select Main Menu and then Options.
  4. Select Restart Game.
  5. Select Yes to restart the game.

2. Power off the Wii U console and power it back on

To power off the Wii U console, hold down the power button on the front of the console for several seconds until it turns off. To power it back on, hold down the power button on the front of the console for several seconds until the console powers on.

3. If you're using a wireless connection, try a wired connection

  1. If you're using a wireless connection, try a wired connection in order to fix nintendo error code 2123-1502.
  2. If you're using a wired connection, try resetting your router.
  3. If you're using a wired connection, try checking your internet connection.
  4. If you're using a wired connection, try resetting your modem.
  5. If you're using a wired connection, try resetting your computer.

4. If you're using a wired connection, try a wireless connection

  1. Power down your Nintendo 3DS system.
  2. Remove the battery and SD card.
  3. Turn off your Nintendo 3DS system by pressing and holding down the Power Button and the Home Button at the same time.
  4. Hold down the Joy-Con Buttons and slide the Nintendo 3DS system out of the Nintendo Switch dock.
  5. Hold down the Joy-Con Buttons and slide the Nintendo 3DS system onto the Nintendo Switch dock.
  6. Reinsert the battery and SD card.
  7. Power up your Nintendo 3DS system.
  8. If you're using a wired connection, try a wireless connection.
  9. If you're using a wireless connection, try a different wireless network.

5. Check for interference from other electronic devices

  1. Remove any cords and other devices that might be interfering with the Nintendo console.
  2. Turn off all electronic devices in the house and wait 30 seconds.
  3. Turn on the Nintendo console and wait a few seconds for it to boot up.
  4. If there is still interference, try turning off one device at a time and checking the Nintendo console after each one is turned off.
  5. If the Nintendo console still experiences interference, it may be necessary to contact Nintendo support.

6. Move closer to the router

There are three steps you need to take in order to fix Nintendo error code 2123-1502:

  1. Open the Nintendo Switch system settings.
  2. Select System Information.
  3. Under the "General" tab, select "Network Settings."
  4. Under the "Basic Network Settings" section, make sure the "Wi-Fi Connection" is set to "On."
  5. If the "Wi-Fi Connection" is not set to "On," under the "Basic Network Settings" section, make sure the "Wi-Fi" is set to "Yes."
  6. Under the "Advanced Network Settings" section, make sure the "IP Address" is set to "192.168.0.1" and the "Subnet Mask" is set to "255.255.255.0."
  7. Under the "Gateway" tab, make sure the "Default Gateway" is set to "192.168.0.1."
  8. Under the " DNS Servers" tab, make sure the "DNS Servers" is set to "192.168.0.1."
  9. Under the "Connection Timeout" tab, make sure the "Connection Timeout" is set to "600."
  10. Under the "Security" tab, make sure the "Secure Connection" is set to "On."
  11. Under the "Link Speed" tab, make sure the "Link Speed" is set to "Auto."
  12. Under the "Wireless Security Settings" tab, make sure the "WPA2-PSK" is set to "On."
  13. Under the "Country/Region" tab, make sure the "Country/Region" is set to the correct region for your Nintendo Switch system.
  14. Click "Apply" to save the changes.
  15. Restart the Nintendo Switch system.

If the answers above didn't work then you should also try:

  1. Check for updates for your game.
  2. Check for updates for your Wii U system.