Fiber Optic Modem Keeps Disconnecting

Hello @ _Khristopher, 

We hear you and understand the gravity of how inconvenient it can be when your modem keeps disconnecting. Let's work around this and make up for the invested time.

         In order to fix AT&T fiber modem we recommend that you try the following steps:

• Check the modem status icon on the task bar on your desktop.
• Check all connections.
• Make sure that the filters are installed on all telephone jacks with telephone devices.
• Make sure that your DSL modem is not plugged into a surge protector.
• Completely shut down your computer.
• Remove the telephone line from modem.
• Unplug your gateway for 15 seconds.
• Remove and reinsert the battery, if you have an internal battery backup.
• Plug the gateway back in and wait for the lights to stop flashing.
• Check your connection to see if the problem is fixed.
  
  Also, other reasons why AT&T internet keeps disconnecting
  
  Unstable network connection
  Busy network.

Please visit our ⁠website to have a better understanding on your concern!


Intermittent services also may be due to damage in SFP Port! (Small Form Factor Pluggable)
If the issue persists, feel free to get back to us!

Thank you visiting AT&T Community Forums!
Leon (AT&T Community Forum specialist)

I have fiber optic, not DSL. All of these steps have been attempted and I did not see an improvement.

Hello @Khristopher,

 Let's connect in a Direct Message to take a deeper look into your concern.

 Please check your Direct Message Inbox, which is the chat icon next to the bell icon in the upper right corner of the Forums page.

Leon (AT&T Community Forum specialist)

On a daily basis, my modem will flash a red light showing it disconnected from the internet and will reconnect in 2-3 minutes. I have had this issue for the past year but it is becoming even more frequent lately, going off a dozen times within my workday.

Is it a slow flashing red light or a fast flashing red light? Fast flashing light indicates a network issue beyond your address that AT&T will need to address without any changes to your Modem or inside connections.

Do you have aerial or underground AT&T provided service?

Dave

Is this still true? OP did yours ever get fixed? Mine has been doing the same but way more often. 

solid white and fine…then all of a sudden blinking white…then slow blinking red for about a minute or so…blinking white fast then sold white. This cycle happens quite often. I’ve done my own troubleshooting but haven’t contacted att yet.