![]() A crossover cable will give a green Ethernet light, but prevents surf. ![]() Note: If you are using an Ethernet (RJ-45) cable not provided by AT&T, make sure it is a straight-through cable and not a crossover cable. If already enabled, disable the NIC and re-enable. Go to Device Manager to make sure the NIC is enabled.If the cable is defective, contact Technical Support for a new RJ-45 patch cable. Press and release the red Reset button on the back of your gateway to restart it. ![]() 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. Make sure the cable isn't a crossover type cable. Make sure all AT&T cables are securely connected.
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