Planet Technology FGSW-2620 - Manual (Page 18)

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4. Troubleshooting
This chapter contains information to help you solve issues. If the
Ethernet Switch is not functioning properly, make sure the Ethernet
Switch was set up according to instructions in this manual.
The per port LED is not lit
Solution: Check the cable connection of the FGSW-2620.
Performance is bad
Solution: Check the speed duplex mode of the partner device. The
FGSW-2620 is run at Auto-negotiation mode and if the
partner is set to half duplex, then the performance will be
poor.
Per port LED is lit, but the traffic is irregular
Solution: Check that the attached device is not set to dedicate full
duplex. Some devices use a physical or software switch to
change duplex modes. Auto-negotiation may not recognize
this type of full-duplex setting.
Why the Switch doesn’t connect to the network
Solution: Check per port LED on the switch. Try another port on the
Switch Make sure the cable is installed properly Make sure
the cable is the right type Turn off the power. After a while,
turn on power again.