User manual

9
3. Troubleshooting
1. The Power LED is not lit
 Check if the AC power cord is well connected. Try to unplug and plug back in the
power cord to the switch or try another power outlet.
2. The Link LED is not lit
 Make sure the network configuration of connecting device is correct, and network
card and drivers are installed correctly.
 Check the cable connections.
 Make sure the cable distance between the switch and other IEEE802.3
compatible network device does not exceed 100 meters.
3. Performance is bad
 Check the status of Ethernet switching. If Ethernet switching is set to full-duplex
on one device but a partner is set to half-duplex, then performance will be poor.
 Make sure the cable between the switch and other IEEE802.3 compatible
network device is Category 5 UTP or better.
4. Some devices can’t talk to other devices on the network
 Check status of the Link LEDs to make sure devices are linked.
 Make sure that the devices' network configurations are correct.
 Reset the switch if needed.