Failed to send HTTP request. (Error at WinHttpSendRequest: 12030)

Scenario:

I got error messages in my ccmsetup.log for my SCCM Native Mode agent installation via command prompt:

Failed to send HTTP request. (Error at WinHttpSendRequest:12030)
DownloadFileByWinHTTP encountered an unrecoverable error


To solve this issue:
I was able to proceed my client installation by:

1. Go to Site Database > Site Management > SCCM Site > Site Settings > Site Systems > 

2. Click at the \\Server

3. Select the ConfigMgr management point

4. Check the "Allow devices to use this management point"

Then, I rerun my client installation command as "ccmsetup.exe /native:FALLBACK /mp:sccm.poc.com smssitecode=ICG ccmfirstcert=1"

My agent is appearing in my SCCM console now. :)