IP Network Address Translator (IPNAT) Service Defaults in Windows 10

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

IP Network Address Translator is a kernel device driver. In Windows 10 it is starting only if the user, an application or another service starts it. If IP Network Address Translator fails to start, the failure details are being recorded into Event Log. Then Windows 10 will start up and notify the user that the IPNAT service has failed to start due to the error.

Dependencies

IP Network Address Translator cannot be started under any conditions, if the TCP/IP Protocol Driver service is disabled.

Restore Default Startup Configuration for IP Network Address Translator

1. Select your Windows 10 edition and release, and then click Download.

2. Save the Win10_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 changed, damaged or deleted, you can restore its original version from Windows 10 installation media.