Windows 10 Services

Wired AutoConfig - Windows 10 Service

The Wired AutoConfig (DOT3SVC) service is responsible for performing IEEE 802.1X authentication on Ethernet interfaces. If your current wired network deployment enforces 802.1X authentication, the DOT3SVC service should be configured to run for establishing Layer 2 connectivity and/or providing access to network resources. Wired networks that do not enforce 802.1X authentication are unaffected by the DOT3SVC service.

This service also exists in Windows 7, 8, Vista and XP.

Startup Type

Windows 10 version Home Pro Education Enterprise
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Default Properties

Display name:Wired AutoConfig
Service name:dot3svc
Path:%WinDir%\system32\svchost.exe -k LocalSystemNetworkRestricted -p
Error control:normal
  • SeChangeNotifyPrivilege
  • SeImpersonatePrivilege
  • SeAuditPrivilege
  • SeTcbPrivilege

Default Behavior

The Wired AutoConfig service is running as localSystem in a shared process of svchost.exe. Other services might run in the same process. If Wired AutoConfig fails to start, the error is logged. Windows 10 startup proceeds, but a message box is displayed informing you that the dot3svc service has failed to start.


Wired AutoConfig is unable to start, if at least one of the following services is stopped or disabled:

Restore Default Startup Type for Wired AutoConfig

Automated Restore

1. Select your Windows 10 edition and release, and then click on the Download button below.

2. Save the RestoreWiredAutoConfigWindows10.bat file to any folder on your hard drive.

3. Right-click the downloaded batch file and select Run as administrator.

4. Restart the computer to save changes.

Note. Make sure that the dot3svc.dll file exists in the %WinDir%\System32 folder. If this file is missing you can try to restore it from your Windows 10 installation media.