Do you have trouble to download the attachment file on ATT mail? If your answer is yes then you should try these given steps those are described here for troubleshooting,
1. Check the internet connectivity, whether it would be poor or no connection.
2. Change the browser settings and again try to sign.
3. Then click to download the attachment file.
At the last step, you can call the customer care team who are 24x7 active on the At&t Technical Support Phone Number
. With the help of experts, you would find an instant solution for your email snags.
For more information Click on this links:-
At&t customer Support Phone Number