I don't want to accidentally misinform you, but if you log into your account online, you will see the error message and it'll walk you through the reset or any other troubleshooting that your system may need.
Did a post have a solution that worked for you? Help other people find solutions faster by marking posts that helped you as an "Accepted Solution". Learn about accepted solutions: Learn More.
*I am an AT&T employee, and the postings on this site are my own and don't necessarily represent AT&T's position, strategies or opinions.