Internet Connection Lost after Installing MS Security Update KB951748
This happens when you have ZoneAlarm Internet Security or Firewall installed in your computer. The moment the MS Security Update KB951748 finishes downloading and installing in your computer, your internet connection gets lost and you’ll have no idea what caused it.
Here’s the work-around:
1. You can set your ZoneAlarm Firewall Security (Internet Security Zone) from HIGH to MEDIUM.
Other known work-arounds by advanced users would be to uninstall (remove) the MS Security Update KB951748 from the Add/Remove Programs of your Control Panel (this works for Windows operating system users) and then configuring the Windows Update to Turn-off. Or you can also run System Restore then Turn-off your Windows Update afterwards.