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Sun, Jul 5, 2020 5:24 PM

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I need to report an error when trying to sign up for wireless service. Where do I email it to?





Community Support


192K Messages

2 y ago

Hi @moninja712,


We are here to help with your error 400. Most often error 400 is a temporary error. We recommend waiting 24 hours and trying again. 


You can also open the web page in an incognito/private browsing mode. If the page loads regularly. This notifies you that there is an error inside the cache and cookies. Here is how to clear your cache and cookies.


Let us know if this helps.



Max, AT&T Community Specialist

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