Latest Windows 10 cumulative update is causing network adapter failure for some users

Windows 10 KB4515384 is causing network adapter failure for version 1903 users

Most of the times when Microsoft releases a Windows 10 cumulative update, users face some issues or the other. Such updates have become the perennial cause of problems for many users, and this time too it’s no different.

This time the issue is with the latest KB4515384 cumulative update for Windows 10 version 1903 that is causing network adapter failure for some users.

“Cumulative update (KB4515384) causes the NIC to fail to enable with a code 10 error,” warns one user on the Windows 10 Feedback Hub. “Reinstalling network drivers from Intel or Windows Update sources does not resolve the issue. However removing the update through the ‘Programs & Software’ panel or using a recovery point set *before* the update fully resolves the issue.”

While another user explained on the forum that their network adapter stopped working after they installed the update.

“KB4515384 breaks ethernet and wifi adapters on my PC. Appears to create new devices as they’re labelled ‘#2’ and when exposing hidden devices in Device Manager the previously named devices appear. Uninstalling these / new or old drivers do not fix the issues (i.e. “ethernet unplugged” which it is clearly not). Only option was to uninstall this update.”

A third user pointed out: “After installing the latest update KB4515384, my Intel wireless network card and Intel LAN card have stopped working. Device Manager reports a device error and cannot start it. Deinstalling KB4515384 solved the problem.”

For its part, Microsoft has confirmed that the company’s latest cumulative update for Windows 10 version 1903 can disable Wi-Fi on Intel Centrino 6205/6235 and Broadcom 802.11ac Wi-Fi cards on specific models of NEC devices.

In the meanwhile, Microsoft has suggested users using an affected device with Windows 10, version 1903 installed on it to disable and then again re-enable the Wi-Fi adapter in Device Manager. This will allow them to use Wi-Fi until the next reboot.

Microsoft and NEC are working on a resolution and will provide an update in an upcoming release.