Must be more than I thread on this but Brads solution seems to be working for me though only time will tell. But usually if I shut my laptop and opened it again I had the problem and this fixed it.
Brad535 asked on December 5, 2013
I had the same problem with my new ASUS laptop. I fixed it by going into network settings-adapter settings and unclicking "ipv6" then going into power management for the adapter and unclicking "allow computer to turn this device off to save power." Problem solved.
I tried to add screen shots but message came up as too long
But fairly simple
Click Change adapter settings in Network and sharing Center and clear tick by IPv6
Then:-
You can use Device Manager to change the power management settings for a network adapter. To disable this setting in Device Manager, expand Network Adapters, right-click the adapter, click Properties, click the Power Management tab, and then clear the Allow the computer to turn off this device to save power check box.