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This chapter provides information about troubleshooting the NETGEAR Model SW108 Ethernet
switch.
Troubleshooting the Switch and the Network
To troubleshoot the switch and the network, refer to Table 5-1.
Table 5-1.
Troubleshooting
Symptom
No power at switch
Rx/Tx Collision LED
blinking
When configured to
operate in full-duplex
mode, the port is
operating in half-duplex
mode
Troubleshooting
Activity
Check
Power LED off
Check the power cord connections and make sure the ends are
properly plugged into the switch and the wall outlet.
Blinking yellow
Data collisions are normal on Ethernet networks and occur
when two or more computers transmit data on the network
simultaneously. Computers that caused the collision retry
transmission at different intervals until the transmission
succeeds. Excessive collisions can result when multiple
switches are connected and when many computers are
connected on the network. Incorrect cabling, connectors, wiring
techniques, and mismatched duplex operating mode settings
are other causes for excessive collisions.
FDX LED off
The connected device may not be able to operate at
half-duplex or may not have the ability to signal the operating
mode. Verify that the connected device is operational.
Chapter 5
Troubleshooting
5-1
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