General Troubleshooting Flowchart; Troubleshooting Common Faults - Ruijie RG-NBS5200 Series Hardware Installation And Reference Manual

Ruijie RG-NBS5200 Series Switches Hardware Installation and Reference Guide
5 Troubleshooting

5.1 General Troubleshooting Flowchart

5.2 Troubleshooting Common Faults

Symptom Possible Causes
Forgetting the
A password is manually configured but
management interface
it is forgotten.
login password
The Status LED is off The power supply is not enabled, or the
after power-on. power cable is loosened.
The connected twisted pair cable is
The RJ45 port is not in
faulty.
connectivity or it is
The length of the cable exceeds 100 m.
erroneous in
The port has special configuration that
receiving/transmitting
has no common working mode with the
frames.
connected switch.
The Rx and Tx ends are connected
reversely.
The fiber port cannot The interconnected optical module type
be connected. does not match.
The fiber type is not correct.
The length of the optical fiber exceeds
Solution
Press the reset button to restore the default
settings.
Check whether the power socket is normal.
Check whether the power cable is correctly
connected.
Replace the twisted pair cable.
Check that the port configuration has the common
working mode with the connected switch.
Switch the Rx and Tx ends of the optical fiber.
Replace the optical module with one of the
matched type.
Replace the optical fiber with one of the
appropriate type.
Replace the optical fiber with one of the
Troubleshooting
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