Typical Troubleshooting Cases; Ethernet Port Does Not Work After Being Connected To An Ethernet Cable; Indicator Is Off For A Long Time; Indicator Remains Red For A Long Time - Ruijie RG-SAP845-SP Hardware Installation And Reference Manual

Hardware Installation Guide
6
Troubleshooting
Universal Troubleshooting Process
6.1

Typical Troubleshooting Cases

6.2

Ethernet Port Does Not Work After Being Connected to an Ethernet Cable

6.2.1
Check whether the device on the other end of the Ethernet is working normally, and then check whether
the Ethernet cable matches the current working speed. In addition, check whether the cable is connected
normally.

Indicator Is Off for a Long Time

6.2.2
If you use a PoE power supply, verify that the power source is IEEE 802.11af-compliant, and then verify

that the cable is connected properly .
If you use a DC power source, verify that the mains input is abnormal, and then verify that the power

supply device works properly.

Indicator Remains Red for a Long Time

6.2.3
If the indicator stays red for a long time, it means that the Ethernet port cannot be connected. Check the
connection on the Ethernet port.
The device works
abnormally after
installation.
Check whether installation is correct.
Check whether the power supply is correctly
connected.
Check whether the indicators are normal.
Check whether cable connections on ports
are correct.
Contact technical support to confirm
whether a hardware failure exists.
29
Troubleshooting