OAuth2 connectivity issue in ICS

Summary

Unable to set up OAuth2 connectivity in ICS

Content

We are trying to generate the access token using OAuth configuration but it is failing everytime. Let me try to explain the scenario:

In SOAP UI: We are generating the access token from Client Credentials Grant token with valid Client ID, Secret and URL. This works perfectly fine.

In ICS: We created a connection of type OAuth Client Credential and provided the necessary values and the connection was successful. However during the integration, it failed to invoke stating: CASDK-0004 : Failed to authenticate against the application with the credentials provided
Cannot request OAuth access token.