Downloading a new update now, but it says it's still at the Sept security patch level. The description says overall stability of device has improved, along with security. The last 4 of the version is AUIL
That worked. I enabled it and then immediately restarted my phone. Went back in to look and it's still enabled.
Once thing I have noticed (even before I enabled that) is that it seems to take a while to connect to the network after restart.