Wifi issues with Intel 7260

[pakyr]

I have a Dell Latitude E5410 with an Intel 7260 wifi card. After the updating, several issues have cropped up -

1. Never autoconnects to known wifi network on startup like before.
2. When I connect to a network, it will sometimes only work for a few seconds then totally stop working (ping to google returns nothing), even though NetworkStatus shows green.
3. When a connection does last, I get frequent notifications saying the connection is ready even though I changed nothing.
4. Even when a connection does last, it will eventually (~20 minutes or so) stop working even as NetworkStatus shows green and connected.
5. When the connection stops working like this, the computer still shows as having an IP address, and I have not yet been able to successfully reconnect without restarting.

When it is working, it works great (noticably faster than before). I'm not sure what diagnostic info is required; please advise what, if anything, I should attach here.

I am on hrev56217.