The link for the sign in page for the portal is: https://concentricbyginkgo.com/login. Please ensure you are accessing the correct web link.
If you cannot remember your password, you will be able to reset it using this link: https://testcenter.concentricbyginkgo.com/reset
Upon receiving this email, you will have the ability to reset your password. Once set up, you will be able to log in to your account. The link will last for five days, so please try to access your account before the link expires.