Planet Technology FGSW-4840S user manual Troubleshooting, Performance is bad

5.TROUBLESHOOTING

This chapter contains information to help you solve problems. If the Switch is not functioning properly, make sure the Ethernet Switch was set up according to instructions in this manual.

The Link LED is not lit

Solution:

Check the cable connection and its quality.

Some stations cannot talk to other stations located on the other port

Solution:

Please check the VLAN, port trunking function that may introduce this kind of problem.

The address table may contain older information than of the address table of that node. Please power down to refresh the address information.

Performance is bad

Solution:

Check the full duplex status of the partner Switch or device. The partner switch is run at full duplex and the Switch runs at Auto-Negotiation (half-duplex mode), then the performance will be poor.

Why the Switch doesn’t connect to the network

Solution:

Check the LNK/ACT 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

Why the LNK/ACT LED of SFP-Mini-GBIC interfaces is not lit?

Solution:

Check the fiber connection

Assure use the correct fiber cable for multi-mode and single-mode

Check the port setting of this Switch

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