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TROUBLESHOOTING
Troubleshooting
Power System
Fault: POWER LED does
not light.
Please Check:
The power switch of the router has been turned on.
The switch of the power supply has been turned on.
The power cord of the router is properly connected.
The power supply can work with the router.
Do not plug/unplug the power cord when the power is ON.
Troubleshooting
Configuration System
After the Power-On Self-Test (POST) of the router, if the system operates normally,
the start-up information should be displayed on the console terminal. If the
configuration system has faults, the terminal may not display anything or may
display only illegible characters.
Fault: “nothing being
displayed on the
terminal”
Symptom:
The console terminal does not display any information after POST of the router.
Solution
1 Check that:
The power system is correctly working.
The console cable is connected correctly.
2 If the problem is not located yet, proceed to check the console cable and the
terminal (such as the HyperTerminal) parameter settings.
Fault: “displaying
illegible characters on
the terminal”
Symptoms
The console terminal displays illegible characters after the POST of the router.
Solution
Verify whether the terminal (e.g., the HyperTerminal) parameter are set as follows:
Baud rate: 9600, Data bits: 8, Stop bit: 1, Parity: None, Flow control: None, and
Terminal emulation: VT100 or Auto detect. If the parameters do not match the
above values, make reconfiguration.
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