5-1
5
Troubleshooting
The power LED (PWR) is off
Observe the following points:
z
A proper power adapter is used.
z
The power cord is correctly connected.
z
The power switch is turned on.
The Ethernet interface LED (ETH) is off
Observe the following points:
z
The network cable is correctly connected.
z
The network cable is firmly connected.
The LAN LED (LAN) is off
Observe the following points:
z
A proper network cable is used to connect the device and the
computer.
z
The network cable is correctly connected.
z
The LED for the network card of the computer is on.
z
The network card of the computer operates normally.
You can open the
Device Manager
in the Windows operating system
and check whether a question mark “?” or an exclamation mark “!”
exists on items under
Network adaptors
. If such a mark exists, you
can try to uninstall the device and install it again or install the network
card in another slot. If the problem remains, install a new network
card.
