Alright, I fixed it, but thanks for the responses! I changed the encryption to WEP, which was a journey of itself because my router is from charter, and the default login info doesn't work. So I scoured the net and found the login info for my router, changed it over, and it still didn't work. Then, I changed the MTU settings in the Wii U, and bingo.
Now I'm trying to do a transfer so I can upgrade to the Wii U version, and it's taking forever.