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ASUS M51AC 57
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LAN
Problem Possible Cause Action
Cannot access
the Internet
The LAN cable is not
connected.
Connect the LAN cable to your
computer.
LAN cable problems
Ensure the LAN LED is on. If not,
try another LAN cable. If it still does
not work, contact the ASUS service
center.
Your computer is not
properly connected to a
router or hub.
Ensure that your computer is properly
connected to a router or hub.
Network settings
Contact your Internet Service Provider
(ISP) for the correct LAN settings.
Problems caused by the
anti-virus software
Close the anti-virus software.
Driver problems Reinstall the LAN driver
Audio
Problem Possible Cause Action
No Audio
Speaker or headphone is
connected to the wrong
port.
• Refer to your computer’s user
manual for the correct port.
• Disconnect and reconnect the
speaker to your computer.
Speaker or headphone
does not work.
Try using another speaker or
headphone.
The front and back audio
ports do not work.
Try both the front and back audio
ports. If one port failed, check if the
port is set to multi-channel.
Driver problems Reinstall the audio driver