Just try doing this to see if it will fix the problem.Another thing that could be holding you back is if your router is set on a channel other than 1 or 11.Step 10) Hit 'Confirm' Step 11) Press 'B' to save Follow this guide by Tgames of GBATemp about blocking auto-updates via a proxy server.
In other words, these servers are built to prevent updates to your Wii U. Step 3) Select 'Connect to the Internet' Step 4) Connect to the internet.(*If you still want e Shop access, check out the /r/wiiuhacks wiki).Here are the URLs to block if you can: Note: Router URL Blocking will block all things Nintendo.(Use your stylus for easier typing) 7: Your Wii U Console shoud now be testing your connection. 8: Press the "Set" button if you want to set it as your default connection.9: After that it will prompt you to update your Wii U automatically, if you haven't already done so then go ahead and if you have already updated then just hit "cancel".