Wired AutoConfig (dot3svc) Service Defaults in Windows 8

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.

Default Settings

Startup type:Manual
Display name:Wired AutoConfig
Service name:dot3svc
Service type:share
Error control:normal
Group:TDI
Object:localSystem
Path:%SystemRoot%\system32\svchost.exe -k LocalSystemNetworkRestricted
File:%SystemRoot%\System32\dot3svc.dll
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\dot3svc
Privileges:
  • SeChangeNotifyPrivilege
  • SeImpersonatePrivilege
  • SeAuditPrivilege
  • SeTcbPrivilege

Default Behavior

Wired AutoConfig is a Win32 service. In Windows 8 it will not be started until the user starts it. When the Wired AutoConfig service is started, it runs as localSystem in a process of svchost.exe, sharing it with other services. If Wired AutoConfig fails to start, the error details are added to Windows 8 error log. When the operating system startup is complete, the user is being notified that the dot3svc service hasn't been started.

Dependencies

Wired AutoConfig can't start, if any service from the list below is disabled or not available:

Restore Default Startup Configuration for Wired AutoConfig

1. Select your Windows 8 edition and update pack, and then click Download.

2. Save the Win8_dot3svc_Service_Startup.cmd file to a local storage device.

3. Run the saved file as an administrator.

4. Restart the computer.

The dot3svc service is using the dot3svc.dll file that is located in the %WinDir%\System32 folder. If the file is corrupted or deleted, you can put it back in there.