Edimax Technology ER-5390S user manual Collision LED is constantly flashing

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5. Collision LED is constantly flashing

•Remove all the network cables; connect the cables back one by one to isolate the source of the collision.

•Check the network cable, inferior cable quality will result in excessive collision and error packets.

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Contents Ethernet Hub FCC Compliance Statement Contents Introduction ER-5390S TopologyFeatures SpecificationPackage Contents Physical Description PanelLED LEDInstallation Connecting to network devices with UTP cableOperating Environment Uplink to Another Hub with UTP cableConnecting to network devices with coaxial cables Connecting the powerTrouble-shooting Power LED is not litPartition LED is lit Contact your dealer if problem persist Collision LED is constantly flashing