Failed to verify certificate chain: CA not trusted

[ASHWIN33]

Hello,
I am trying to establish https communication using Poco NetSSL_Win.
the following error message is received while establishing https communication with any server(google, bing, etc).
"Failed to verify certificate chain: CA not trusted"

I am able to find the root certificates in the Windows Trusted store and communication is getting success in IE browser without any error. But after adding the intermediate certificates in the windows cert store, able to receive response from the server.

Received same error message while running the sample project(download) provided in the poco.

can somebody provide some insights regarding this error and how to fix this issue?

Context creation code snippet
lpWssContext = new Context(Context::CLIENT_USE,"",Context::VERIFY_STRICT, Context::OPT_TRUST_ROOTS_WIN_CERT_STORE | Context::OPT_USE_STRONG_CRYPTO);

Version - poco-1.9.4
Lib - NetSSL_Win