Unable to download a file from Blob Storage Account

Hi Support,

I am using TI based CC3220SF-LaunchXL device to download a file from the blob storage using HTTPS.

When I am trying to download a file from the container in a blob storage account, I am unable to connect due to Root CA certificate error. I am at present using Baltimore Cyber Trust Root certificate, but unable to connect. Please provide solution for this problem. 

Thanks,

Sai Jnaneswar Juvvisetty