IP Network Address Translator (IPNAT) Service Defaults in Windows 8

IP Network Address Translator by Microsoft Corporation.

Default Settings

Startup type:Manual
Display name:IP Network Address Translator
Service name:IPNAT
Service type:kernel
Error control:normal
Path:%SystemRoot%\System32\drivers\ipnat.sys
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\IPNAT

Default Behavior

The IP Network Address Translator service is a kernel device driver. In Windows 8 it will not be started until the user starts it. If IP Network Address Translator 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 IPNAT service hasn't been started.

Dependencies

IP Network Address Translator can't start, if the TCP/IP Protocol Driver service is disabled or not available.

Restore Default Startup Configuration for IP Network Address Translator

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

2. Save the Win8_IPNAT_Service_Startup.cmd file to a local storage device.

3. Run the saved file as an administrator.

4. Restart the computer.

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