Found these troubleshooting steps on the Wii forum. Give these a try.
This error code usually indicates a problem relating to wireless security
. Please try the following troubleshooting:
1. Are you using WEP or WPA security on your router?
1. Log into the router using the default IP
(consult your router's manual for assistance)
2. Locate the "wireless security" section of your router settings and find the WEP or WPA key.
3. If you are using 64-bit encryption, the WEP Key must be a
10-character key consisting of numbers or letters A through F.
4. If you are using 128-bit encryption, the WEP Key must be a
26-character key consisting of numbers or letters A through F.
5. The WEP Key must be a Hexadecimal
(0-9, A-F, no other special characters or letters).
6. If your router has multiple slots for a WEP Key, make sure the active key is the one in the #1 slot.
7. If you are using WPA, the Wii console is compatible with the following types:
* WPA - PSK (TKIP)
* WPA - PSK (AES)
* WPA2 - PSK (AES)
2. If your WEP or WPA key is correct, then the problem might be related to MAC address filtering:
1. From the router settings, locate the "MAC address filter"
settings (also known as "access control", "access list", or "network
filter" depending on your router model).
2. If the Mac address filter is set to "enabled", then you must
add the Wii's MAC address to the "allowed" list. You can locate the
Wii's MAC address from the "console information" page (located under
"Internet" in the Wii Settings).
3. If the Mac address filter was disabled, then continue troubleshooting.
If your connection was working previously, try power cycling your
router and modem by unplugging them both from the wall. Wait a few
minutes, and plug the modem back in. Wait a couple of minutes for the
modem to initialize, then turn on the router. Try to connect the Wii
console online and test for proper response. (Some routers may lose
their connection to the Wii console while it is in Standby or turned off
for a period of time. Check with your router manufacturer's website for
the latest firmware, as there may be an update that will help prevent
this issue from occurring in the future.)
Try adjusting the "Channel" your wireless router
broadcasts on. We highly recommend setting your wireless router to
either channel 1 or 11. This can potentially increase the download
speed. For information on accessing your router's settings, click here
to select the brand name and model number of your router (if available).
Try a "Manual Setup" with the Wii console (how to), using your
network's IP configuration settings. 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. Locate the settings asked for by the Wii console
during the Manual Setup process and enter them.
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