Microsoft has just released a patch to fix the recent Windows DCHP issue

Microsoft is investigating reports that a recent Windows update is stopping some PCs from connecting to the internet.

Update (13 Dec 2016): KB3206632 was released to resolve this issue. Customers should first try restarting their PC, if they are then still unable to connect to the Internet, should then install the update. 

Visit the Windows Update FAQ for more information on keeping your PC up to date.

www.microsoft.com