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Mouse58756's profile

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1 Message

Friday, March 17th, 2023 5:20 PM

Cannot log into Smart Home Manager

Have had AT&T Fiber 500 for about 3 weeks now, I am still not able to log into the Smart Home Manager app. Every time I try it tells me I need to have AT&T internet.  I do.  I get an error code of 403.400.   Called the local store but they were of limited help.  Called customer service last week and they gave me a different username that I had signed up with in the store.  That didn’t work.  They were supposed to call me back but never did.  Frustrating to say the least.  

Community Support


229.7K Messages

1 year ago

We can help you access the Smart Home Manager, Mouse58756.


Based on the information you provided, we'll have to access your account. We'll send you a Direct Message to gather your information and start working on a resolution. Look for the chat icon in the upper right corner of the page.


In the meantime, troubleshoot the Smart Home Manager with our solutions guide:

  • Restart the app.
  • Reboot your gateway.
  • Uninstall and reinstall the app.
  • Make sure you're logging in with the correct ID -- if you're not sure, visit the find your ID page.
  • Remove 3rd party devices, such as routers and switches. Afterward, reboot your gateway and restart the app to see if that helps. 3rd party devices can cause conflicts with the app. If you still need to use a 3rd party device, use the smart home manager to optimize your network before adding the 3rd party device back.
  • You can also access Smart Home Manager from the web at If you have issues connecting, we recommend clearing your cache and cookies or trying another browser.

Aminah, AT&T Community Specialist

1 Message

5 months ago

I am trying to use the Smart home manager but when I do it says I am already registered but I’m not.. it has a email address for me that isn’t mine and never has been. How can I get the correct email address on there so I can register? Thank you 

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