WWAN AutoConfig (WwanSvc) Service Defaults in Windows 8

This service manages mobile broadband (GSM & CDMA) data card/embedded module adapters and connections by auto-configuring the networks. It is strongly recommended that this service be kept running for best user experience of mobile broadband devices.

Default Settings

Startup type:Manual
Display name:WWAN AutoConfig
Service name:WwanSvc
Service type:share
Error control:normal
Group:TDI
Object:NT Authority\LocalService
Path:%SystemRoot%\system32\svchost.exe -k LocalServiceNoNetwork
File:%SystemRoot%\System32\wwansvc.dll
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\WwanSvc
Privileges:
  • SeChangeNotifyPrivilege
  • SeImpersonatePrivilege
  • SeAuditPrivilege

Default Behavior

WWAN AutoConfig is a Win32 service. In Windows 8 it will not be started until the user starts it. When the WWAN AutoConfig service is started, it runs as NT Authority\LocalService in a process of svchost.exe, sharing it with other services. If WWAN 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 WwanSvc service hasn't been started.

Dependencies

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

Restore Default Startup Configuration for WWAN AutoConfig

Before you begin doing this, make sure that all the services on which WWAN AutoConfig depends are configured by default and function properly. See the list of dependencies above.

1. Run the Command Prompt as an administrator.

2. Copy the command below, paste it into the command window and press ENTER:

sc config WwanSvc start= demand

3. Close the command window and restart the computer.

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