solid green on AT&T Gateway: A solid green light on the AT&T Gateway means everything is working normally — the device is online and connected to AT&T Internet.
A solid green light on the AT&T Gateway means everything is working normally — the device is online and connected to AT&T Internet. No action is needed.
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Most likely causes
Normal operation — the connection to AT&T Internet is established
Nothing is wrong; this is the healthy state
Try this first
No fix needed — solid green is the normal working state
If you still have no internet, check the WiFi or Ethernet lights instead
Restart the AT&T Gateway only if devices cannot connect