In case you're unable to log in to your SBCGlobal email, you may have incorrect credentials. If you've been using your account without a valid password, it's possible you've made an error. In such a case, you should first check your username and password to make sure you're using the correct combination of upper and lowercase letters, numbers, and symbols. In addition, if you've recently changed your password, it's likely that the problem is related to a new one.