Microsoft calls it a "servicing stack update". Released July 12, but if your networking is currently on the fritz you wouldn't know that... Replaces KB3149135

Download here on a computer with functional internet Microsoft Update Catalog

The file list contains many network related files. Windows Update downloaded and installed it (during a brief time I could get my WiFi to not go to limited) and after install and reboot it just connected to my WiFi with no fuss and so far has stayed connected.

Now to hopefully finally be able to use my laptop online!