Explore & discover

Helpful Links

gateway authentication failure


gateway authentication failure

getting gateway authentication failure message when try to sign on. all lights green but service light. it doesnt come on
Message 1 of 3

Re: gateway authentication failure

Hello @phillipsfamily,


We’re sorry for your inconvenience.  This thread post offers a solution that should help.  You can also check this U-verse Internet Troubleshooting article which gives many troubleshooting steps you can take.


If these options do not help, please let us know.






Need help?
Ask a question to get help from the AT&T Community or support from AT&T specialists. If this reply helped you please use Accept solution to mark it as an Accepted Solution.
*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.
Message 2 of 3

Re: gateway authentication failure

My iPhone 8 plus is saying Gateway Authentication Failure please contact service provider my email is Ronald.garvin@aol.com

Message 3 of 3
Share this topic
Share this topic

Are you having trouble logging in? Is your email password not working? Let us show you how to Reset your Email Password using myAT&T!

Additional Support