How to fix the AT&T U-verse gateway authentication failure

The internet connection comes to you through an ISP. The ISP is usually at the back; all you know is that your devices are able to connect to the router and all is well. If you are having problems connecting to a particular website, the problems often lie with your internet settings or router configuration. It is usually easy to solve.

gate authentication failure

Fix AT&T U-verse gate confirmation failure

AT&T is one of the largest ISPs in America. It provides both high-speed internet and high-speed cable connections, as well as other services and products. You can usually rely on uninterrupted service from the company. This is true for both the internet and the cable service.

Of the many services and products that AT&T offers, U-Verse TV service. The TV is delivered over a high speed network connection and like any other network connection, it can cause problems. If you see the gate verification failure message on your U-Verse TV set, try the solutions below.

1. Check AT&T service status

Before attempting anything to fix a gateway authentication error, check if it is on your head or if AT&T is suffering a service interruption. It happens and the company needs to repair it.

To check the quality of the service, visit the company service status page. Alternatively, you can call the entire helpline and they will tell you if there is an ongoing problem.

If there is a service interruption, it is up to AT&T to resolve it.

2. Power circuit modem

Try restarting the modem ie, your router.

  1. Set the power button on the router.
  2. Press and hold the button for 15 seconds.
  3. Release the button.
  4. Unplug the modem from the wall socket.
  5. Wait another 15 seconds.
  6. Connect the power plug to the modem.
  7. Press the power button to turn it on.
  8. Wait to keep the lights on.

3. Look for loose cable

If a cable is not securely connected to the router, you may see a gate authentication tape error. Set up the router and make sure everything is securely connected. Please try to disconnect and reconnect. Also, make sure everything is connected to the correct port / socket.

4. Reset the router

Try resetting the router. Gateway authentication error indicates a problem with network configuration and if you are accessing your TV, as well as other devices, your network settings in the router need to be reset.

  1. Set the reset button on the router (this is different from the power button).
  2. Press and hold the reset button.
  3. When the lights on the router start flashing, release the button.
  4. Wait to keep the lights on.
  5. Gate authentication failure should be removed.


A gateway authentication error on a computer may have to do all sorts of things; the browser, computer network settings, your DNS settings, or the website you are trying to access. However, if you see a gateway authentication error on all of your devices, it is possible that your router or connection is to blame. If you are unfamiliar with router reset, you can contact AT&T for assistance.

The post How to Fix AT&T U-verse Gateway Authentication Failure appeared first on TechtricksNg.