Microsoft has made available to 13 December update KB3206632 which inter alia fixes the mysterious mistake that does not allow Windows systems 10 to obtain an IP address, thus the internet becomes impossible.
Earlier, Microsoft had recommended that users could not connect to restart -o ending and starting anew not solve the problem.
Given the connection failure, users who experience this problem will have to consider the properties of the system to find a version of Windows 10 they use (64bit or 32-bit version). -this can be done by right-click My Computer.
From another computer, users can download the update KB3206632, save it to an external storage medium (The 64 bit version requires nearly 1GB space). With this, They can then make the Windows Update from USB medium. Information is available on the Microsoft Update Catalog at https://www.catalog.update.microsoft.com/Search.aspx?q=KB3206632,
which appears as Cumulative Update for Windows 10, Version 1607 for Windows 10 and Windows Server 2016.