Remote Access IP ARP Driver (WANARP) Service Defaults in Windows 7

Remote Access IP ARP Driver.

Default Settings

Startup type:Manual
Display name:Remote Access IP ARP Driver
Service name:WANARP
Service type:kernel
Error control:normal
Path:%SystemRoot%\system32\DRIVERS\wanarp.sys
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\WANARP

Default Behavior

Remote Access IP ARP Driver is a kernel device driver. In Windows 7 it won't be started if the user doesn't start it. If Remote Access IP ARP Driver 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 WANARP service is not running because of the error.

Restore Default Startup Configuration for Remote Access IP ARP Driver

1. Run the Command Prompt as an administrator.

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

sc config WANARP start= demand

3. Close the command window and restart the computer.

The WANARP service is using the wanarp.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 7 installation media.