About a month or so ago, I started noticing that my saved wifi networks would not autoconnect. The even weirder part: if I go to the wifi network listing, I don't even have to turn wifi off and on or select the network and say "connect", simply opening the listing makes it connect on its own. This is driving up my data utilization as my work wifi is unstable, so disconnnects and reconnects several times a day. Now it just disconnnects and never reconnects. I have a Samsung tablet and an HTC work phone whose wifi autoconnects with no issues on the same networks.