I have an existing Salesforce Developer Edition Account; however, when I try and connect to my account via the Challenge Connect button, my username and password is not recognized. Do I need to connect to my salesforce developer account via the challenge connect in order for the challenge to be credited to my developer trailhead account? Or can I just login to my salesforce developer account separately and complete the challenge that way?

I have an existing Salesforce Developer Edition Account; however, when I try and connect to my account via the Challenge Connect button, my username and password is not recognized. Do I need to connect to my salesforce developer account via the challenge connect in order for the challenge to be credited to my developer trailhead account? Or can I just login to my salesforce developer account separately and complete the challenge that way?