If you have already installed the operating system and are currently receiving a "code 31" error on the WAN Miniport (Network Monitor) device, follow these steps: To prevent this issue during future installs, you must integrate update 2822241 into the installation media that you use during setup.įor information about how to use Deployment Image Servicing and Management (DISM) to integrate a hotfix package into installation media, see Add or remove packages offline. Because there is no driver associated with the device, it cannot be removed from Device Manager. This issue occurs because Windows cannot load the drivers that are required for the WAN (Network monitor) device. The device is not working properly because Windows cannot load the drivers required for this device. Additionally, the Details tab of the device properties window displays the following message: ![]() In this scenario, Device Manager displays a yellow exclamation mark next to the WAN Miniport (Network monitor) device. ![]() You open Device Manager after the installation is complete. ![]() This article provides a workaround for an issue where Device Manager displays a yellow exclamation mark next to the WAN Miniport (Network monitor) device.Īpplies to: Windows 10 - all editions, Windows Server 2012 R2 Original KB number: 2871372 Symptoms
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