# Fix ‘Code 31 Errors’ In Windows 11

**URL:** https://www.compsmag.com/blogs/fix-code-31-errors-in-windows-11/
**Author:** Ayushi Chauhan
**Published:** 2022-04-12
**Updated:** 2022-04-12
**Categories:** Blogs
**Tags:** Blogs Daily, Computer Guides, guiderobert, Guides and Tutorials, guiding12, How To Guide, How To Guides, Tips, Tricks, Windows 10, Windows 11
**Reading Time:** 3 min

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This guide is about Fix ‘Code 31 Errors’ In Windows 11. So read this free guide, Fix ‘Code 31 Errors’ In Windows 11 step by step. If you have query related to same article you may contact us.

## Fix ‘Code 31 Errors’ In Windows 11 - Guide

Network adapter code 31 error in Device Manager can occur on a Windows based PC (Windows 10, 8, 7 or Vista) if the proper driver for the network controller (Ethernet/LAN) is not installed as per the expected or is corrupted.  The full picture of the error “code 31” in the “Device Status” data box is.  When a code 31 error occurs on one (or more) devices, the corresponding device appears with a yellow exclamation point icon in Device Manager.

In many cases, the Ethernet error “code 31” can occur even though the correct driver for the Ethernet controller is already installed.  In such cases, you will need to take some additional steps to resolve error code 31 on your network adapter.  This tutorial contains detailed steps and instructions on how to resolve Ethernet Controller Code 31 error in Device Manager.

## How to    Fix a code error 31

Restart your computer if you have not already done so.  The Code 31 error can be caused by a temporary memory failure.

Did you install a device or make a change in Device Manager just before the code 31 error appeared?  In this case, it is possible that the change you made caused the Code 31 error.

Undo the change if you can, restart the PC and recheck the Code 31 error.

Roll back the driver to a version older than your updates.

Use System Restore to undo recent changes related to Device Manager.

Delete the UpperFilters and LowerFilters registry values.  A common cause of code 31 errors is corruption of two registry values ​​in the DVD/CD-ROM drive class registry key.

Update device drivers.  Installing the latest manufacturer-supplied drivers for a device with error code 31 is a likely fix for this issue.

Reinstall the Microsoft ISATAP network adapter if the error code 31 is related to the MS ISATAP adapter not working properly.

Open Device Manager and go to the Action > Add Legacy Hardware screen.  Launch the wizard and select Install the hardware I manually select from a list (Advanced).  Click through the steps and choose Network Adapters > Microsoft > Microsoft ISATAP Adapter from the list.

Replace hardware.  As a last resort, you may need to replace hardware that is experiencing code 31 error.

It is also possible that the device is not compatible with this version of Windows.  Check the Windows Hardware Compatibility List to be sure.

## Final note

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