If you are going through a Can’t Sign-in Error in SBCGlobal, you do not need to worry.
• Go and log into your Yahoo.com Att.net.
• Here, go to the att.net login webpage.
• Now, put in your AT & T ID email address and log in.
If you are unable to do so, check if you have an SBCGlobal password, not working issues. In case the query does not resolve, give a call to SBCGlobal technical support number and talk to their experts.