I'm having the exact same issue. Its not the router because my other devices work fine. I dirty flashed the 4.4 jbsourcery rom on my gnex. That is most likely the cause but I use wifi so little that it is not necessary for me to wipe the phone.
I got the notice for the update but wanted to factory reset first. Once i booted back up im on 3.2.1 still and it says im up to date. Did i mess something up?