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Tricuspid's profile

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Wed, Oct 5, 2022 3:32 AM

AT&T Fiber not as fast as before.

Some background information: 

-18 devices connected at all times

-Most are on the 5GHz band (this is automatic)

-Xfinity cable is wirelessly connected to provide cable service (ARRISGro Device)

-Interruptions in cable or even internet. 
-Used to get 800Mbps down and up on wifi (paying for 2Gig service) and now only getting 350-400Mbps down and up average. 

I’ve had AT&T fiber service for almost two months now and it felt like it almost magically got worse after I paid the first bill. The speeds were phenomenal before and they are by no means slow right now, just noticeably less fast than before. Does anyone know what could be causing this? The ARRISGro Device is the biggest data consumer and all devices are connected wirelessly but this was not an issue for like 6 weeks and suddenly, there is a huge drop in speed and reliability. 


Community Support


204.2K Messages

2 months ago

We understand the importance of a reliable internet connection and want to help get your service back up to speed, @Tricuspid!


The speed of your internet connection to your Wi-Fi gateway is pretty consistent. You can check it with AT&T Smart Home Manager.

The speed you get on devices connected to your network, however, can vary. The number of devices you connect to Wi-Fi, how you use them, their age and type, and Wi-Fi signal strength all can affect speed.


We recommend that you try rebooting your gateway. Doing so can help refresh your connection. To perform a reboot manually, follow these steps: 

  1. Unplug the power cord from the back of your gateway or modem. If you have: 
    • An internal battery backup, remove it
    • DSL, unplug the phone cord from your modem or gateway
  2. Wait 20 seconds.
  3. Put the internal battery back in if you have one. 
  4. Plug the power cord back in. If you have DSL service, reconnect the phone cord.
  5. Wait up to 10 minutes for the gateway or modem to restart and your Broadband light to turn solid green.

Learn more about what can affect your internet speed and how to optimize your internet by reviewing this article.


Let us know if this helps!


Lacey, AT&T Community Specialist 

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