We have a V2110 HA pair, FW 10.01.06.0006. We're using NAC version 220.127.116.11 for authentication to the wireless network. All other clients can connect fine (phones, laptops, tablets, XBox and Playstation), but Wiis do not work. We get the error code above. This is after the device MAC is added to the authenticated group via the Self-Registration portal.
I have seen previously that updating BOTH the router and wifi driver to the latest levels available will resolve this goofy issue.
Most typically this symptom occurs with the better WPA & WPA2 protocols but WEP can be used successfully.
Solution 1. Connect to the access point https://www.errorsolutions.tech/error/wii-error-code-51330/
I've never personally seen this issues with any of the Wii's we have on campus. Apparently the Wii's only support 802.11g and 802.11b. If you have n-strict set on your radio's, that could cause this error. I would also try testing with a 20Mhz channel on the 2.4 radio if you aren't already.