Netgear EN108 EN104 Installation Guide - Page 14

Troubleshooting Symptom Cause Solution Amber Col LED blinks. Amber Col LED blinks excessively. There is data collision on the network. Data collision is normal on Ethernet networks. No action is required. There is data collision on the network because the network is extremely busy Make sure connected devices are operating in half-duplex mode. The hub is not compatible with devices that operate in full-duplex mode. If you suspect that there might be a defective device on the network, disconnect devices one at a time to isolate the defective unit on the network. or defective If the network is extremely busy, you may have to devices are segment the network with an Ethernet switch such connected on the as a NETGEAR Ethernet switch or to upgrade network that your network to Fast Ethernet operation. cannot detect network traffic or collision. Wrong or miswired cables are used. Green Link LED The port is not is off when a detecting a cable is attached. successful link. Make sure the correct UTP cables are used. See the table in the installation section of this guide for cable use and Normal/Uplink push button information. Note that home telephone cables can cause a collision condition and cannot be used in place of UTP cables. Check for a bad cable, cable pairs that are not correctly wired, or loose connectors. Make sure that there is power to both the hub and the Ethernet transceiver on the connected device. Green Link LED is not blinking when there is data transmission. The port is not detecting data transmission. Check for a bad cable, cable pairs that are not correctly wired, or loose connectors. Make sure that there is power to both the hub and the Ethernet transceiver on the connected device. Green Active The port is not LED on the BNC detecting a port is not on successful link. when the port is connected. Make sure that each segment is terminated with a BNC 50 terminator at both ends. Check for a bad cable. Green Rx LED on the BNC port is not blinking when there is data transmission. Green Active LED on the AUI port is not on when the port is connected. The port is not detecting data transmission. The port is not detecting a successful link. Green Rx LED The port is not on the AUI port is detecting data not blinking when transmission. there is data transmission. Check for a bad cable or loose connectors. Make sure that there is power to both the hub and the connected device. Make sure that the AUI transceiver is functioning properly, the coaxial segment is terminated correctly, the segment is not disconnected along the cable length, and the signal quality error (SQE) test on the transceiver is disabled. Refer to your transceiver documentation for instructions on setting the SQE. Check for a bad cable or loose connectors. Make sure that there is power to both the hub and the connected device. Model EN104/EN108/EN116 Ethernet Hub Installation Guide