Fix: OneCore-DeviceAssociationService Error ID 3503 in Windows

The “OneCore-DeviceAssociationService” error appears in the Event Viewer on Windows with Error ID 3503. It has been reported that the error occurs after the Windows 11 24H2 update, with the message “The Device Association Service detected an error discovering endpoints.” This issue is primarily linked to problems with device drivers and Wi-Fi configuration. While the error doesn’t cause noticeable performance or stability issues, it appears when the user tries to restart or shut down their system.

1. Check for Driver Updates

The first step to troubleshoot the issue is to check for available driver updates. Outdated drivers can sometimes be incompatible with the latest Windows updates or the hardware environment. Newer versions may have bug fixes that can potentially resolve the “OneCore-DeviceAssociationService” error.

The easiest way to update drivers is via Windows Update, which automatically checks for and installs new drivers if available. To do this:

1. Open your system’s Settings.
2. Navigate to Update & Security > Windows Update.
3. Click on Check for updates.
4. The system will automatically install any pending Windows or driver updates.

2. Disable Unused Wi-Fi

Since the issue stems from your system’s Wi-Fi configuration, a temporary fix can be to disable the Wi-Fi altogether if it is not in use. You can also opt to use a LAN connection if the option is available for your device. If you use a Network Interface Card, it is recommended that you update your network card’s driver since it can potentially resolve compatibility issues leading to the error message.

3. Run the System File Checker Scan

At times, corrupt or unwanted system files can trigger random errors that can be hard to diagnose. Therefore, you are advised to run an SFC (System File Checker) scan when troubleshooting Windows-related issues. This scan will find and replace any files that are missing or corrupt.

1. Press Windows + X, and select Terminal (Admin).
2. Type sfc /scannow to start the scan.
3. The system will take some time to go through the system files.
4. Once completed, it will notify you of any integrity violations.

4. Reinstall Windows

Since checking for pending driver updates also searches for available Windows updates, make sure you update your system if a patch fix is released. If an update isn’t available, consider clean installing Windows from scratch.

Ensure you back up all your important data before proceeding since a clean install will erase your Windows partition completely. Appuals has an in-depth guide on installing Windows from scratch that may assist you throughout the process.