WWAN AutoConfig (WwanSvc) Service Defaults in Windows 7
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: |
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Default Behavior
WWAN AutoConfig is a Win32 service. In Windows 7 it won't be started if the user doesn't start it. When the WWAN AutoConfig service is started, it is running as NT Authority\LocalService in a shared process of svchost.exe. Other system components, such as drivers and services, may run in the same process. If WWAN AutoConfig fails to start, Windows 7 attempts to write the failure details into Event Log. Then Windows 7 startup should proceed and the user should be notified that the WwanSvc service is not running because of the error.
Dependencies
WWAN AutoConfig is unable to start, if at least one of the following services is stopped or disabled:
Restore Default Startup Configuration of 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 C:\Windows\System32 directory. If the file is removed or corrupted, read this article to restore its original version from Windows 7 installation media.