There an issue with a Windows update(for now only reported in Windows 2008 R2 and Windows 7) with VMware vmxnet 3 NICs, and possible E100e(Intel Pro/1000).

Windows Update is convenience rollup update KB312557.

What it does is that replaces the vmxnet3 nic Adapter with vmxnet 3 nic Adapter #2 and removes all IP Address information(if you are using Static IP) after you install the update and the system is rebooted.  If we uninstall the update the original nic Adapter and IP information is restored.

For Also with Intel Pro/1000(E100E), I am still testing and confirming this one, but will not replace but it is would disabled about 10 seconds and then reconnects again.

Until now issues are seeing in 5.0, 5.1 and 5.5, still trying to check if 6.0 have this issue(but Windows teams have complain similar issues last week and we have 6.0, so still troubleshooting if is same issue)

Microsoft information about the issue: https://support.microsoft.com/en-us/kb/3125574

VMware Information about the issue: https://blogs.vmware.com/apps/tag/microsoft-kb-3125574

So Windows Teams should remove this KB312557 update from WSUS or manual updates.

Hope this can help you fix this issue.

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