It is known that conflicts between your network adapter and the third-party VPN installed on your system will result in the ‘Windows is still building up the class configuration for this device.’ (Code 56) error message.

Users have reported that after upgrading to Windows 1709 or 1803, they lost all network connections. Some network troubles have been linked to 1803; fortunately, they can be easily fixed.

Windows is Still Setting Up The Class Configuration For This Device. (Code 56)


Method 1: Helpdesk Technician For Computer Networks

If you get the aforementioned error, you should initially use the Network troubleshooter. If your network adapter drivers or other software are causing problems, the troubleshooter will investigate. Because of this, trying it out is a safe bet.

To use the Network Troubleshooter, follow these steps:

Step 1: To access System Preferences, press Windows Key + I.

Step 2: In this case, you want to visit the Internet and Network menu.

Step 3: To use, select “Network troubleshooter” from the menu.

Step 4: Find out whether that solves your problem.

Method 2: Forced Reboot of Network

If the troubleshooter is unable to identify and resolve the issue, a Network Reset will be required. Performing a Network Reset will return your system to its factory settings for your network. You could find that this solves the problem. So, here’s what you do:

Step 1: To access System Preferences, press Windows Key + I.

Step 2: In this case, you want to visit the Internet and Network menu.

Step 3: The Network reset button may be found in the Status panel; press it to initiate a factory reset.

Step 4: To finish, select “Reset immediately” in the new window and hold off until it’s done.

Method 3: CheckPoint VPN Deinstallation

We’ve already established that a third-party VPN you’ve installed on your PC is at least partially to blame for the problem, as it’s interfering with your network adaptor. Stopping the VPN service from running is the only solution.

Most users have reported success with this fix. For this reason, if you have a CheckPoint VPN installed, you should remove it from your PC using the Control Panel before rebooting.

If you’re not utilising CheckPoint as your VPN of choice, you should delete your current VPN and restart your device. If you recently upgraded to Windows 10 and are experiencing this difficulty, go back to the previous version of Windows, remove any third-party VPN software, and then do the upgrade.

You should remove Windows Update.

If the problem started after you installed a certain update of Windows 10, removing it should resolve the issue. So, here’s what you do:

Step 1: Simply use the Windows key plus the letter I to access the Control Panel.

Step 2: Enter Update and security.

Step 3: Pick Uninstall updates after clicking View update history.

Step 4: Once the new window has shown, double-click the Windows update you wish to remove.

Step 5: Just give it time to finish.

Method 5: Simple Reinstall

Unfortunately, if none of the aforementioned workarounds solve your problem, a fresh reinstall of Windows is your only option. If you plan on completing a clean install, you should back up all of your important files and papers beforehand, as they will be deleted along with the system disc.

Method 5: Bios Reset

If resetting the Bios does not resolve the problem, try another troubleshooting step. Here are the measures you should take to do this.

Step 1: To enter bios, restart the computer and press the F12, F9, or Del key.

Step 2: The BIOS reset button has to be placed on the display.

Step 3: For most systems, this is the “F9” key; use it and follow the on-screen instructions.

Step 4: The Bios can be reset in this manner.

Step 5: See whether the problem still exists.