I'm trying to connect my Wii to the internet with the "Nintendo Lan Adaptor". I plug the ethernet cable at the back of my cable modem (motorola SB5100). I get errors 51420, 52020 and 50299 Help much appreciated! Nick.

1. Make sure that you are using the Wii LAN Adapter made by Nintendo. LAN adapters not made by Nintendo likely will not work with the Wii console.

2. Ensure that the Wii LAN Adapter setup is correct, and that the Wii LAN Adapter was connected with the console turned off.

3. Check to see if the ethernet cable you are using is not working properly, by connecting another ethernet cable from your router/modem to the Wii LAN Adapter. If the connection works using a different cable, then the problem was with the first cable.

4. If possible, try another Wii LAN Adapter.

Error Code: 52020 What to do will depend on how you are connecting your Wii console. Please use the info below that describes how you are connecting.

Connecting directly to a modem:

1. Power off the Wii. Connect the official Nintendo Wii LAN adapter to the Wii, and insert a working ethernet cable into the official Nintendo Wii LAN Adapter.
2. Unplug all devices from your modem. Most modems are unable to support more than one device at a time.
3. Power cycle your modem. To do this, unplug the power from your modem and let it rest for 20 seconds. Plug the power back in. Connect the Ethernet cable from your Wii console to the Ethernet port on your modem.


4. If the connection test fails, try a "Manual Setup" with the Wii console (how to), using your network's IP address, Default Gateway, Subnet Mask, and DNS information. To access these settings:
   1. On your PC, click "Start" and then "Run."
   2. Type "CMD" into the field that appears to open a new window.
   3. Type "IPCONFIG/ALL" and press "Enter" to display a list of internet settings, including the settings listed above. Input these exactly as they're listed into the "Manual Setup" of the Wii console's internet connection.
5. If you are still unable to connect and you are using broadband Internet, then your ISP likely uses PPPoE to establish a connection to their network. The Wii is not compatible with PPPoE. Contact your ISP for more assistance.

Connecting to a router:

1. Ensure that an Ethernet Cable is running from the WAN or Internet Port on the router to the modem. Power cycle the modem by unplugging it from the electrical outlet, waiting a moment, and then plugging it back in.
2. Power off the Wii console, and insert the Wii LAN Adapter into one of the USB ports on the back of the Wii console.
3. Run an ethernet cable from the Wii to a numbered port on the router.
4. Power on the Wii console, and run a connection test through the Wii console's online settings.
   
5. If the connection test fails, try a "Manual Setup" with the Wii console (how to), using your network's settings on your PC:
   1. On your PC, click "Start" and then "Run."
   2. Type "CMD" into the field that appears to open a new window.
   3. Type "IPCONFIG/ALL" and press "Enter" to display a list of internet settings, including the settings listed above. Input these as they're listed into the "Manual Setup" of the Wii console's internet connection, except for the IP address. The IP address needs to be different. Add 10 to the IP address and use that number in the Wii console's settings.

you can also visit this site for more information about your comsole tnxx please rate me if this help you...
http://www.nintendo.com/consumer/wfc/en_na/ds/results.jsp?error_code=52020&system=Wii&locale=en_US

you can try this step on how to connect your wii console on internet...

Error Code: 52020 What to do will depend on how you are connecting your Wii console. Please use the info below that describes how you are connecting.

Connecting directly to a modem:

1. Power off the Wii. Connect the official Nintendo Wii LAN adapter to the Wii, and insert a working ethernet cable into the official Nintendo Wii LAN Adapter.
2. Unplug all devices from your modem. Most modems are unable to support more than one device at a time.
3. Power cycle your modem. To do this, unplug the power from your modem and let it rest for 20 seconds. Plug the power back in. Connect the Ethernet cable from your Wii console to the Ethernet port on your modem.


4. If the connection test fails, try a "Manual Setup" with the Wii console (how to), using your network's IP address, Default Gateway, Subnet Mask, and DNS information. To access these settings:
   1. On your PC, click "Start" and then "Run."
   2. Type "CMD" into the field that appears to open a new window.
   3. Type "IPCONFIG/ALL" and press "Enter" to display a list of internet settings, including the settings listed above. Input these exactly as they're listed into the "Manual Setup" of the Wii console's internet connection.
5. If you are still unable to connect and you are using broadband Internet, then your ISP likely uses PPPoE to establish a connection to their network. The Wii is not compatible with PPPoE. Contact your ISP for more assistance.

Connecting to a router:

1. Ensure that an Ethernet Cable is running from the WAN or Internet Port on the router to the modem. Power cycle the modem by unplugging it from the electrical outlet, waiting a moment, and then plugging it back in.
2. Power off the Wii console, and insert the Wii LAN Adapter into one of the USB ports on the back of the Wii console.
3. Run an ethernet cable from the Wii to a numbered port on the router.
4. Power on the Wii console, and run a connection test through the Wii console's online settings.
   
5. If the connection test fails, try a "Manual Setup" with the Wii console (how to), using your network's settings on your PC:
   1. On your PC, click "Start" and then "Run."
   2. Type "CMD" into the field that appears to open a new window.
   3. Type "IPCONFIG/ALL" and press "Enter" to display a list of internet settings, including the settings listed above. Input these as they're listed into the "Manual Setup" of the Wii console's internet connection, except for the IP address. The IP address needs to be different. Add 10 to the IP address and use that number in the Wii console's settings.

if this help you please rate me thank you sir.....

Error Code: 51420 The Wii console is not able to connect to your wired router or modem.

1. If your connection worked previously, check to see if there is a Wii System Update that you have not aquired. To get the latest Wii System Update:
   1. From the Wii's main menu, select the Wii icon along the bottom left of the screen.
   2. Select "Wii Settings".
   3. Click the left arrow to get to Wii System Settings 3
   4. Choose "Wii System Update"
   5. Choose "Yes" to connect to the internet and perform a Wii system update.
2. Make sure that you are using the Wii LAN Adapter made by Nintendo. LAN adapters not made by Nintendo likely will not work with the Wii console.
3. Check to make sure you are not running the Wii LAN Adapter from a USB hub (a device that connects multiple USB products through a single device), as this will likely not work. Connect the USB Connector directly to the modem or router.
4. Ensure that the Wii LAN Adapter setup is correct, and that the Wii LAN Adapter was connected with the console turned off.
5. Check to see if the ethernet cable you are using is not working properly, by connecting another ethernet cable from your router/modem to the Wii LAN Adapter. If the connection works using a different cable, then the problem was with the first cable.
6. If possible, try another Wii LAN Adapter. If you are unable to try another Wii LAN Adapter, or are still receiving this error code, please call 1-800-255-3700 for assistance.

Here is the solution from nintendo:

1. Power off the Wii. Connect the official Nintendo Wii LAN adapter to the Wii, and insert a working ethernet cable into the official Nintendo Wii LAN Adapter.
2. Unplug all devices from your modem. Most modems are unable to support more than one device at a time.
3. Power cycle your modem. To do this, unplug the power from your modem and let it rest for 20 seconds. Plug the power back in. Connect the Ethernet cable from your Wii console to the Ethernet port on your modem.
4. If the connection test fails, try a "Manual Setup" with the Wii console (how to), using your network's IP address, Default Gateway, Subnet Mask, and DNS information. To access these settings:
   1. On your PC, click "Start" and then "Run."
   2. Type "CMD" into the field that appears to open a new window.
   3. Type "IPCONFIG/ALL" and press "Enter" to display a list of internet settings, including the settings listed above. Input theseexactly as they're listed into the "Manual Setup" of the Wii console's internet connection.
5. If you are still unable to connect and you are using broadband Internet, then your ISP likely uses PPPoE to establish a connection to their network. The Wii is not compatible with PPPoE. Contact your ISP for more assistance.

What to do will depend on how you are connecting your Wii console. Please use the info below that describes how you are connecting.

Connecting directly to a modem:
1. Power off the Wii. Connect the official Nintendo Wii LAN adapter to the Wii, and insert a working ethernet cable into the official Nintendo Wii LAN Adapter.
2. Unplug all devices from your modem. Most modems are unable to support more than one device at a time.
3. Power cycle your modem. To do this, unplug the power from your modem and let it rest for 20 seconds. Plug the power back in. Connect the Ethernet cable from your Wii console to the Ethernet port on your modem.

4. If the connection test fails, try a Manual Setup with the Wii console, using your network's IP address, Default Gateway, Subnet Mask, and DNS information. To access these settings:
1. On your PC, click "Start" and then "Run."
2. Type "CMD" into the field that appears to open a new window.
3. Type "IPCONFIG/ALL" and press "Enter" to display a list of internet settings, including the settings listed above. Input these exactly as they're listed into the "Manual Setup" of the Wii console's internet connection.
5. If you are still unable to connect and you are using broadband Internet, then your ISP likely uses PPPoE to establish a connection to their network. The Wii is not compatible with PPPoE.

Fiend your solution direct from nintendo. Here is your solution....
http://www.nintendo.com/wiiconsole/prob676ijt65/solution

oishuk13

Error Code: 52021 What to do will depend on how you are connecting your Wii console. Please use the info below that describes how you are connecting.

Connecting directly to a modem:

1. Power off the Wii. Connect the official Nintendo Wii LAN adapter to the Wii, and insert a working ethernet cable into the official Nintendo Wii LAN Adapter.
2. Unplug all devices from your modem. Most modems are unable to support more than one device at a time.
3. Power cycle your modem. To do this, unplug the power from your modem and let it rest for 20 seconds. Plug the power back in. Connect the Ethernet cable from your Wii console to the Ethernet port on your modem.


4. If the connection test fails, try a "Manual Setup" with the Wii console (how to), using your network's IP address, Default Gateway, Subnet Mask, and DNS information. To access these settings:
   1. On your PC, click "Start" and then "Run."
   2. Type "CMD" into the field that appears to open a new window.
   3. Type "IPCONFIG/ALL" and press "Enter" to display a list of internet settings, including the settings listed above. Input these exactly as they're listed into the "Manual Setup" of the Wii console's internet connection.
5. If you are still unable to connect and you are using broadband Internet, then your ISP likely uses PPPoE to establish a connection to their network. The Wii is not compatible with PPPoE. Contact your ISP for more assistance.

Connecting to a router:

1. Ensure that an Ethernet Cable is running from the WAN or Internet Port on the router to the modem. Power cycle the modem by unplugging it from the electrical outlet, waiting a moment, and then plugging it back in.
2. Power off the Wii console, and insert the Wii LAN Adapter into one of the USB ports on the back of the Wii console.
3. Run an ethernet cable from the Wii to a numbered port on the router.
4. Power on the Wii console, and run a connection test through the Wii console's online settings.
   
5. If the connection test fails, try a "Manual Setup" with the Wii console (how to), using your network's settings on your PC:
   1. On your PC, click "Start" and then "Run."
   2. Type "CMD" into the field that appears to open a new window.
   3. Type "IPCONFIG/ALL" and press "Enter" to display a list of internet settings, including the settings listed above. Input these as they're listed into the "Manual Setup" of the Wii console's internet connection, except for the IP address. The IP address needs to be different. Add 10 to the IP address and use that number in the Wii console's settings.

When you are not able to connect with Internet from Your Wii, means there is something wrong with the settings. You may go to Wii Fix Guide and check out the guide available there, This DIY guide will show step by step pictures to fix the problems yourself without any technical knowledge.....

if you have all of these
Requirements to Connect the Wii Console Online with a Wired Connection In order to connect the Wii console online with a wired connection, you will need the following:

• A Wii LAN Adapter (where to buy)
• An active broadband internet connection, such as DSL or Cable.
• A compatible Internet Service Provider (ISP). Some ISPs require a sign-in every time you connect online, or are otherwise incompatible. Contact your ISP for more information.
• Either a cable modem or wired router with an available ethernet port. (DSL users: while some DSL modems may be compatible, our experience has shown that many are not. We recommend using a router.)
• An ethernet cable.

then go here for more information
http://www.nintendo.com/consumer/systems/wii/en_na/connectingOnline.jsp?entryId=wdRouter

this information was found on nintendo's customer service website

I hope you find it useful