Unable to ping the server with ipnat.sys error in services.

Recently I faced issue with one of the Windows 2003 Server and I was unable to ping the server. Whereas, I was able to ping other server form the same Windows 2003 server in the network.

I got the error message “Windows firewall cannot run because another program or service is running that might use the network address translator component (ipnat.sys)”.

After lots of reference and research I got the solution to fix the issue.

Using the syntax “NET STOP IPNAT” in the command prompt fixed the issue.

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