Hotfix KB4099950 to fix lost network settings after KB4088878 and/or KB4088875 on Windows 7 SP1 and/or Windows Server 2008 R2 SP1.
Does not apply to:
Windows Server 2008 R2 SP1 + KB3125574
Windows 7 SP1 + KB3125574
// Since it was the first item on the known issues section. You would already have remedied the problem.
Windows Server 2008 R2 SP1 + KB2775511
Windows 7 SP1 + KB2775511
Windows Server 2008 R2 SP1
Windows 7 SP1
If you had installed the March 2018 security updates (KB4088878 & KB4088875) and lost network settings on Windows 7 SP1 and/or Windows Server 2008 R2 SP1. And if you looking for a fix, here it is.
4099950 Network Interface Card settings can be replaced, or static IP address settings can be lost
Note: It needs to be installed before KB4088875 and/or KB4088878 are installed.
Update: If for some reason you still haven’t installed the March 2018 Security updates, resynchronize WSUS after 2:00 p.m. Pacific (GMT-8) today (4/3/2018) which will force KB4099950 before KB4088875 and/or KB4088878 are installed.
Q: What about my Windows Server 2008 SP2 based systems?
A: If pci.sys version is older than 6.0.6002.22567, you will need to set the registry keys:
HackFlags (DWORD) 0x00040000 (Hex)
*Note, if there’s a HackFlags value there already, make sure you OR the values instead of overwriting it."
· If HackFlags doesn’t exit:
· If HackFlags does exits
New Value: (Existing Flags | 0x00040000)
Example: if existing value is 0x0000001, change value to (bitwise OR) 0x00040001
2710558 Network adapter teaming breaks after you install the hotfix that is described in KB article 2487376 or 2495300 in Windows Vista SP2 or in Windows Server 2008 SP2
Q: In April 2018 security updates, do we need to do anything else?
No, it (KB4099950) will be bundled with the April 2018 updates. [Updated Apr. 10, 2018] For Windows Server 2008 R2 SP1, download the April Security update 2018 (KB4099950) from the Windows Catalog.
[Updated Apr. 12, 2018 at 3:00 p.m. Pacific (UTC-8)]
For Windows Server 2008 R2 SP1, we have re-released the April 2018 Security hotfix KB4093118 which now includes KB4099950.
For more info about the April 2018 security hotfix:
April 10, 2018—KB4093118 (Monthly Rollup)