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How Do I Fix Error Code 2123-0301 on Nintendo Switch

Regain online connectivity on your Switch using these troubleshooting solutions.

Nintendo has crafted one of the most beloved gaming systems globally. The Switch offers a collection of exceptional classic and modern games, including iconic titles like Mario and The Legend of Zelda. However, this wonderful gaming experience can become disappointing when you come across the Nintendo error code 2123-0301. But don’t worry, as this article will provide you with all the solutions you need to fix the issue.

How do I fix error code 2123 0301 on Nintendo Switch

How Do I Fix Error Code 2123-0301 on Nintendo Switch

With Nintendo Switch, you have the option to enjoy games on its OLED screen, connect to a TV for larger visuals, or engage in multiplayer fun using Tabletop mode. However, all this goes in vain due to error code 2123-0301, stopping the console from connecting to the internet. To help you fix it, we have provided some troubleshooting solutions below. So, read till the end.

Quick Answer

Get online connectivity back on Switch by updating the console:

1. Open System Settings from the home screen.

2. Now, select System from the left panel.

2. Finally, select System Update.

What Causes Error Code 2123-0301 on Nintendo Switch?

The said issue is mainly related to the network. Here are some of the possible causes:

  • DNS Issue
  • Malfunctioning Router
  • Network Interruptions

Method 1: Basic Troubleshooting Methods

 Let’s take a look at some simple solutions first.

1A. Restart Nintendo Switch

When something goes wrong with your Nintendo Switch, you can try turning it off and then on again. This can help if the device is stuck or not working properly, as it can fix the problems by itself.

1. Hold the power button for 3-5 seconds. In case it is not restarting, then hold it for twelve seconds to force restart.

2. Wait for some time, and hold the power button again for 3-5 seconds to restart.

Restart switch | How do I fix error code 2123 0301 on Nintendo Switch

1B. Create New Internet Connection

If your Wi-Fi isn’t working correctly for some reason, you can try making a new internet connection to fix Nintendo error code 2123-0301. Here are the steps you can follow:

1. Open System Settings.

click on the System Settings gear icon

2. Select the Internet option, and then Internet Settings.

Note: Your device will automatically search for the nearby available networks.

3. Choose the appropriate SSID or Name, then enter its password.

Note: Now your Nintendo Switch will begin testing the network, it might take a while to complete.

4. Press OK.

1C. Move Nintendo Switch Closer to Router

Every router has a limited range they can serve. But if you are at the edge of the limit, then it is possible that your network connection is poor leading to Nintendo error code 2123-0301. In that case, you can move your device closer to the router, and the network connection will improve.

router image

1D. Remove Obstructions

Anything that is made of metal can interfere with the network connection. So, if there is a metallic object between your router and your Nintendo device, then it is wise to move that object away. 

1E. Restart Router

As we mentioned earlier, the issue might not only be with your Nintendo device but also with the router. If that’s the case, just like you restarted the Switch, you can do the same for your router. This might solve the problem.

Restart Router or Modem | How do I fix error code 2123 0301 on Nintendo Switch

If it doesn’t, let’s move on to some more advanced methods.

Also Read: How to Fix Error Code 2123-1502 on Nintendo Switch

Method 2: Use Airplane Mode

If you are facing an issue related to the network leading to Nintendo error code 2123-0301, then using Airplane mode can prove to be a great help. To use this setting on your Nintendo Switch, follow the steps mentioned below:

1. Open System Settings from the home screen.

click on the System Settings gear icon

2. Select Airplane Mode located on the left corner of the screen.

3. Press A on the controller to activate it.

4. Wait for some time, and then Press A again to deactivate it.

Method 3: Use Alternate DNS

DNS is a crucial setting in your Nintendo Switch. If there’s a problem with the DNS, it can cause Nintendo error code 2123-0301. To solve it, follow this guide:

1. From Home, open Internet Settings.

2. Under Registered Network, select the network you are using.

3. Pick Change Settings, locate DNS Settings, and click on it.

4. Choose Manual.

Select Manual | How do I fix error code 2123-0301 on Nintendo Switch

5. Enter as the Primary DNS and Secondary DNS as

6. Now, select OK and save the new data.

Method 4: Update Nintendo Software

If the software on your Nintendo gaming console is old, it can lead to different problems. Therefore, to fix error code 2123-0301 on Nintendo Switch, update the firmware by following these steps:

1. Open System Settings and select System.

2. Next, click on System Update.

Select System Update, to start the system update process.

Once done, restart the console and check if the issue is resolved.

Also Read: 12 Best Nintendo DS Emulators for Windows

Method 5: Troubleshoot Router

If following the basic troubleshooting method, you restart the router, and still, it isn’t working, then there might be some other problems with it. For more details, you can check out our dedicated article on Fix Wireless Router Keeps Disconnecting or Dropping.

Update the firmware for your router or modem | How do I fix error code 2123-0301 on Nintendo Switch

Method 6: Contact Support Team

If none of the methods we talked about work for you, then your only option is to get in touch with customer support. You can either contact the team via the official Twitter handle and tag them in a post explaining the issue. Or in case you are not getting any reply, then use the official support page to get error code 2123-0301 on Nintendo Switch fixed.

Contact Nintendo Support

We hope after reading this article, you were able to fix error code 2123-0301 on Nintendo Switch. If you still have any doubts, then don’t forget to ask them in the comment section, our team will help you with them. Thank you for reading.

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