The information in this article can help when you're unable to connect to the Internet and you receive an error code from 51330 to 51332.
This error code indicates the authentication process between the Wii and wireless router or access point failed.
This is often caused by the router refusing a connection because an incorrect security key or security type has been entered into the Wii Internet settings.
This may also occur as the result of wireless interference.
A private home network and an internet browser-enabled device are required to complete these troubleshooting steps.
What to do
Change the security type in the Wii System Settings to WPA2 - PSK (AES) and test your Internet connection again.
If the Wii detected the incorrect security type during the initial set-up, simply updating this setting within your existing Internet connection may resolve the issue.
If this setting was already pre-selected as WPA2-PSK (AES) try the connection test again, prior to continuing to the next step.
Check your network's settings to ensure you're using the correct wireless password.
Make note of both the wireless password and security type. Both need to be entered correctly into the Wii Settings.
Update the Security Settings within the Wii Internet Settings.
Review closely to ensure both the security type and password match the information you located during step 3.
Once you have entered the correct password or key into your system, try the connection test again. If the problem persists, continue troubleshooting.
Power cycle your router and modem, and then try again.
Ensure the wireless mode within your router's settings is compatible with the Wii console.
The Wii console supports the 802.11g and 802.11b wireless formats (also labeled as "Up to 54Mbps" in some routers).
If the router is using a 802.11n only ("Up to 300Mbps") mode, you will need to change this setting to allow the Wii to connect to your home network.
Change your router's channel setting to 1 or 11.
By default, most routers broadcast on channel 6, which overlaps with other channels and may be weaker.
Situation not resolved
The prior steps resolve most issues that result in this error code; however, if you're still unable to connect please review the following information regards Nintendo Wi-Fi termination, the closure of the Wii shop channel, and the Wii Shop Channel Closure Q&A.
Alternatively, if the issue persists and you would like to work with a member of our support team, please contact us for support.