Edimax Technology ES-5800P - Manual (Page 4)

3 3 Trouble-shooting
1. Power LED is not lit
z Check if the power cord is properly connected to the external power
adapter and the power outlet. Make sure the power jack is firmly
plugged into the power socket of the switch.
2. Link/Activity is not lit when connect to 1000/100Mbps device
z Check the power switch of the network device attached to the switch;
make sure it is turned ON.
z Check the network cable; make sure it is properly connected to the
switch and the network device.
z Check the network cable; make sure the UTP cables comply with
EIA/TIA 568 and Category 5 specification.
[!] Contact your dealer if problem persist.