Asus ASUSPRO D520SF D520 series users manual - Page 70
Display, Contact your Internet Service Provider
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ENGLISH Display Problem Possible Cause No display output after turning the computer on (Black screen) The signal cable is not connected to the correct VGA port on your computer. Signal cable problems Action • Connect the signal cable to the correct display port (onboard VGA or discrete VGA port). • If you are using a discrete VGA card, connect the signal cable to the discrete VGA port. Try connecting to another monitor. LAN Problem Possible Cause The LAN cable is not connected. Action 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. Cannot access the Internet Your computer is not properly connected to a router or hub. Network settings Problems caused by the antivirus software Driver problems Ensure that your computer is properly connected to a router or hub. Contact your Internet Service Provider (ISP) for the correct LAN settings. Close the anti-virus software. Reinstall the LAN driver 70 Chapter 6: Troubleshooting