When downloading game software or update data on Switch, there are cases where the message “Error code: 2123-1502 An error has occurred.” is displayed and the download is not possible.
This error means that there was a problem connecting to Nintendo’s servers and the download failed. There are many cases where the error is displayed again even if the download is restarted after an error occurs.
In this article, we will introduce in detail what to do when the error message “Error code: 2123-1502” appears on Nintendo Switch.
Solution 1: Continue Downloading
In some cases, “Error Code: 2123-1502” is displayed during download due to a temporary communication problem with Switch.
A temporary communication failure can be resolved by simply continuing the download again. To continue the download from the error screen, follow the steps below.
- Select “OK” on the “Error Code: 2123-1502” error screen.
- When the message “An error occurred and the download has stopped.” is displayed, select “Continue”.
After restarting the download with the above steps, wait until the download is complete. If you restart the download and the error appears again, proceed to the next solution.
Solution 2: Choose Download Options
“Error code: 2123-1502” may be displayed during download due to a temporary connection problem between Switch and the download server.
This issue may be worked around by selecting the download option to download the data in the background. To select the download option and download your data in the background, please follow the steps below:
- Select “OK” on the “Error Code: 2123-1502” error screen.
- When the message “An error has occurred and the download has stopped.” is displayed, select “Stop download”.
- Select the “Download” button for software or update data.
- Quickly select “Download Options” before the error occurs.
- Keep the download option open and wait for the data to finish downloading.
When the download is completed by following the steps above, a download completion message will be displayed on the upper left. After the download is complete, check if the software or update data was downloaded correctly.
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Solution 3: Check free memory space
It is possible that “Error code: 2123-1502” is displayed during download due to insufficient memory space on the Switch.
So make sure you have enough free space in your Switch’s memory. To check the amount of free memory on your Switch, follow these steps:
- Select “Settings” on the home screen of your Switch.
- Select Data Management.
- Check the “free space” of the internal storage memory.
If there is less free space than the data to be downloaded, select “Organize data all at once” on the data management screen to organize unnecessary data.
Once you have enough free space in your memory, download the software or update data again to make sure the error is resolved.
Solution 4: Switch Airplane Mode
In some cases, “Error Code: 2123-1502” may be displayed when downloading due to a temporary issue with your Switch’s internet connection.
Therefore, turning Airplane Mode on and back off on your Switch and reconnecting to the network may fix the error. To switch to airplane mode, follow the steps below.
- Select “Settings” on the home screen of your Switch.
- Select “Airplane mode”.
- Select “Airplane mode” and switch it to “ON”.
- Wait a few seconds, then select “Airplane mode” again and switch it to “OFF”.
After turning Airplane Mode on and off, run the download again to make sure the error is gone.
Solution 5: Temporarily Disable Sleep
“Error code: 2123-1502” may be displayed because the Switch is in sleep mode while downloading software or update data.
Therefore, by temporarily disabling the sleep setting of the Switch, you may be able to download without an error. To temporarily disable sleep, follow the steps below.
- Select “Settings” on the home screen of your Switch.
- Select “Sleep”.
- Select “Automatic sleep when playing on the main unit screen” and change it to “No (initial setting is 10 minutes)”.
- Select “Auto sleep when playing on TV” and change it to “No (default is 1 hour)”.
Once you’ve successfully disabled sleep on your Switch, run the download again to see if it completes without errors. After the download is complete, restore the sleep setting.
Solution 6: Delete Wi-Fi Settings and Reconnect
“Error code: 2123-1502” may be displayed when downloading due to a problem with the Wi-Fi settings of the Switch.
Therefore, deleting the Wi-Fi settings and reconnecting may resolve the error. Follow the steps below to delete the Wi-Fi settings and reconnect.
- Select “Settings” on the home screen of your Switch.
- Select “Internet”.
- Select “Internet Settings”.
- Select the connected “Wi-Fi name”.
- Select Clear Settings.
- Select “Erase”.
- Go back to “Internet Settings” and select “Wi-Fi Name” from the found networks.
- Enter your Wi-Fi password and select OK to reconnect.
Once you’ve cleared your Wi-Fi settings and reconnected, try downloading again to see if the error is resolved.
If you have a Switch USB network adapter, you may be able to solve the error by connecting with a cable and downloading.
Solution 7: Reboot Switch and Router
“Error code: 2123-1502” may be displayed when downloading due to a temporary problem with your Switch or router.
So reboot your Switch and router and check if the problem persists. If you have a Wi-Fi router separate from the gateway router, reboot both routers.
To reboot your Switch and router, follow these steps:
- Reboot your Switch:
- Press and hold the “power button” on the top of the Switch for at least 3 seconds.
- Select Power Options > Power Off.
- If the above procedure does not turn off the power, press the “Power button” for 12 seconds or more to force the power to turn off.
- After confirming that the power is off, press the “power button” on the Switch to turn it on.
- Reboot your router:
- Unplug your router’s power adapter.
- Wait a few minutes, then reconnect the power adapter.
After restarting your Switch and router, try downloading the software or updates again to see if the error is resolved.
Solution 8: Clear Switch Cache
There may be cases where “Error code: 2123-1502” is displayed during download due to a problem with cache data on Switch.
So, clearing and resetting your Switch’s cached data might fix the error. Follow the steps below to clear the cached data on your Switch.
- Select “Settings” on the home screen of your Switch.
- Select “Body”.
- Select “Initialize”.
- Select “Initialize Cache”.
- Select the “user” to initialize the cache.
- Select “Initialize” when the confirmation pop-up appears.
After clearing the Switch’s cache data, try downloading the software or update data again.
Solution 9: Update Firmware
There may be cases where “Error code: 2123-1502” is displayed during download due to an old version of the Switch’s firmware.
Therefore, updating the firmware to the latest version may resolve the error. Follow the steps below to update the firmware.
- Select “Settings” on the home screen of your Switch.
- Select “Body”.
- Select “Update Device”.
- If a new update is found, select “Update console”.
- Select OK when the confirmation pop-up appears.
Once you’ve updated your Switch’s firmware to the latest version, run the download again to make sure the error is gone.
Solution 10: Change Your Network’s DNS Settings
In some cases, you may see “Error Code: 2123-1502” while downloading due to a problem with the DNS server of the network that your Switch is connected to.
Therefore, the error may be avoided by changing the DNS settings of the Switch’s network. To change your network’s DNS settings, follow the steps below.
- Select “Settings” on the home screen of your Switch.
- Select “Internet”.
- Select “Internet Settings”.
- Select the connected “Wi-Fi name”.
- Select Change Settings.
- Select “DNS Settings” and change it to “Manual” and enter the values for Google’s DNS servers below.
- “Preferred DNS”: 8.8.8.8
- “Alternate DNS”: 8.8.4.4
- Select “Save”.
Once you’ve successfully changed your network’s DNS settings, try the download again to see if the error no longer occurs.
Solution 11: Change language settings back
Due to a language-related bug on Switch, there may be cases where “Error Code: 2123-1502” is displayed during download.
Therefore, changing the language setting to another language and back may resolve the error. To change the language setting and restore it, follow the steps below.
- Select “Settings” on the home screen of your Switch.
- Select “Body”.
- Select “Language” and change it to “Another language (e.g. English)”.
- Select “Restart” when the confirmation pop-up appears.
- Select System Settings on the Switch home screen.
- Select “System”.
- Select “Language” and change it back to “Japanese”.
- Select “Restart” when the confirmation pop-up appears.
After changing the language setting and changing it back, try the download again to see if the error is resolved.
Solution 12: Change the MTU setting
It is possible that the Switch’s MTU setting is too low for the network you are connected to, causing unstable communication and displaying “Error code: 2123-1502” during download.
Therefore, changing the MTU setting may resolve the error. To change the Switch’s MTU setting, follow the steps below.
- Select “Settings” on the home screen of your Switch.
- Select “Internet”.
- Select “Internet Settings”.
- Select the connected “Wi-Fi name”.
- Select Change Settings.
- Select “MTU” and change it to “1500 (default is 1400)”.
- Select “Save”.
After changing the MTU setting, try downloading again and check if the error is gone. If the problem persists, change the setting back.
Solution 13: Initialize while leaving save data
If “Error Code: 2123-1502” still appears after trying all the solutions, consider resetting your Switch with save data.
However, please note that if you leave save data and initialize it, all data other than save data in memory will be deleted and all settings will return to factory settings.
Follow the steps below to initialize the save data.
- Press and hold the “power button” on the top of the Switch for at least 3 seconds.
- Select Power Options > Power Off.
- While holding down the “+” and “-” buttons on the main unit, press the “Power button” once.
- Once the Switch boots into maintenance mode, select “Keep save data and initialize”.
With the above steps, you can initialize the Switch with save data. After initialization is complete, run the download again to see if the error is resolved.
