Troubleshooting - H3C MSR 900 Series Quick Start Manual

5

Troubleshooting

The power LED (PWR) is off
Observe the following points:
A proper power adapter is used.
The power cord is correctly connected.
The power switch is turned on.
The Ethernet interface LED (ETH) is off
Observe the following points:
The network cable is correctly connected.
The network cable is firmly connected.
The LAN LED (LAN) is off
Observe the following points:
A proper network cable is used to connect the device and the
computer.
The network cable is correctly connected.
The LED for the network card of the computer is on.
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.
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