NIC settings are replaced or static IP address settings are lost after you install KB4088875 or KB4088878

Applies to: Windows 7 Service Pack 1Windows Server 2008 R2


This update addresses the following issues that were introduced in KB4088875 and KB4088878 for Windows 7 Service Pack 1 (SP1) and Windows Server 2008 R2 SP1:

A new Ethernet Network Interface Card (NIC) that has default settings may replace the previous NIC and cause network issues.

  • Static IP address setting are lost.
  • These symptoms may occur on both physical computers and virtual machine that are running VMWare.

Known issues

Microsoft is not aware of any issues that affect this update currently.

More information


  • This update must be installed before you install KB4088875 or KB4088878.
  • If you have previously installed KB4099950 prior to April 17, 2018 please uninstall the older version of KB4099950 and reinstall to assure you have the most recent version.


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