Red Hat Linux: Unable to enable patching due to login validation error?

Red Hat Linux: Unable to enable patching due to login validation error?

I'm trying to enable Red Hat Linux support within Endpoint Central and am currently hung up at the initial step where I enter my Redhat username and password.
It's providing a "Validation Failure" each time I do this.
I've double checked the password as well as tried using the email address instead of the username to no avail.

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