Get help with NAD series errors

Troubleshoot a specific error message for your Wi-Fi gateway.

Before you troubleshoot any errors, first check for an outage.

Make sure all AT&T cables are securely connected.
If you have AT&T Fiber, unplug your Fiber box’s power supply from the wall for 10 seconds and then plug it back in.
Press and release the red Reset button on the back of your gateway to restart it. This can take up to 10 minutes.
Watch the broadband or service light. When you see a solid green light, close and reopen your browser.

Make sure all AT&T cables are securely connected. Also:
- Verify any device connected to your phone line has a DSL filter and is securely connected.
- Confirm the green data cable connects the filter to the broadband gateway port.
- Check to make sure the phone port goes to the phone line, and the DSL line goes into the DSL filter.
- Revert any recent change to your wires, splitters, or faceplates. Or, check out different service options.
Confirm the advanced gateway setting (Broadband, then Configuration, then Broadband Override) is set to Auto. Or, if you have a 5268AC gateway, go to Settings, then Broadband, then Link Configuration and see if it’s set to Automatic Ethernet/DSL.
Press and release the red Reset button on the back of your gateway to reboot it. This can take up to 10 minutes.
Watch the broadband or service light. When you see a solid green light, close and reopen your browser.

Locate the antenna power supply and toggle the power switch on and off.
Press and release the red Reset button on the back of your gateway to restart it. This can take up to 10 minutes.
Watch the broadband or service light. When you see a solid green light, close and reopen your browser.

You'll see these errors when your gateway can't connect to the internet. If the problem continues, call us at 800.288.2020.

Before you troubleshoot any errors, first check for an outage.

Make sure all AT&T cables are securely connected.
If you have AT&T Fiber, unplug your Fiber box’s power supply from the wall for 10 seconds and then plug it back in.
Press and release the red Reset button on the back of your gateway to restart it. This can take up to 10 minutes.
Watch the broadband or service light. When you see a solid green light, close and reopen your browser.

Make sure all AT&T cables are securely connected.
Pull out the SFP module and carefully reinsert it into the gateway. Also confirm that the module installed in your gateway is the one that came with it.
Press and release the red Reset button on the back of your gateway to restart it. This can take up to 10 minutes.
Watch the broadband or service light. When you see a solid green light, close and reopen your browser.

Make sure all AT&T cables are securely connected.
- Verify any device connected to your phone line has a DSL filter and is securely connected.
- Confirm the green data cable connects the filter to the broadband gateway port.
- Check to make sure the phone port goes to the phone line, and the DSL line goes into the DSL filter.
- Revert any recent change to your wires, splitters, or faceplates. Or, check out different service options.
Confirm the advanced gateway setting (Broadband, then Configuration, then Broadband Override) is set to Auto. Or, if you have a 5268AC gateway, go to Settings, then Broadband, then Link Configuration and see if it’s set to Automatic Ethernet/DSL.
Press and release the red Reset button on the back of your gateway to reboot it. This can take up to 10 minutes.
Watch the broadband or service light. When you see a solid green light, close and reopen your browser.

Before you troubleshoot any errors, first check for an outage.

Check each item until the antenna power supply light is green. Make sure the:
- Antenna cable is securely attached at both ends with the outdoor antenna cable end being connected to the blue port on the antenna power supply, and the other end connected to the wall jack leading to the outdoor antenna.
- Ethernet cable is securely connected with one end attached to the red router port of the antenna power supply, and the other end to the red gateway port.
- Power cord to the antenna power supply is securely plugged in at both ends.
- Antenna power supply switch is on and the power light is red—if it's not, confirm the outlet is working.
If the antenna power supply light isn't green, turn the antenna power switch off. Then wait 10 seconds and turn it back on. If it's still not working, go to step 5.
Press and release the red Reset button on the back of your gateway to restart it. This can take up to 10 minutes.
Watch the broadband or service light. When you see a solid green light, close and reopen your browser.

Make sure all AT&T cables are securely connected.
If you have AT&T Fiber, unplug your Fiber box’s power supply from the wall for 10 seconds and then plug it back in.
Press and release the red Reset button on the back of your gateway to restart it. This can take up to 10 minutes.
Watch the broadband or service light. When you see a green light, close and reopen your browser.

Last updated: June 27, 2024

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