Table of Contents
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Installation Guide
5
Common Troubleshooting
5.1
Troubleshooting Flowchart
The device is not working properly
Check the device installation
Check the power connection
Check the LEDs on the device
Check the cable connection
Contact Technical Support of Ruijie Networks
5.2
Common Faults
Symptom
The login password
cannot be retrieved.
The SYS indicator is off
after the switch is
powered on.
An RJ45 port is
disconnected or a
frame
sending/receiving error
Possible Cause
The login password is forgotten after
being configured.
No power is supplied to the switch or
the power cord is loose.
The twisted pair cable is not
connected properly.
The cable length exceeds 100 m
(328.08 feet).
20
Common Troubleshooting
Suggested Action
Press and hold the reset button for more
than 5 seconds to restore factory settings.
Check whether the power socket in the
machine room is normal and whether the
power cord connected to the switch is
loose.
Replace the twisted pair cable.
Use optical cables or connect to a
cascaded switch.
Make sure that the port works in the same
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