Troubleshooting Information - NETGEAR ProSafe GS504 Installation Manual

Troubleshooting Information

Symptom Cause
Power LED is off. No power is received
at the hub.
Link LED is off or Port connection is
intermittent. not functioning.
File transfer is Half- or full-duplex
slow or setting on the
performance NETGEAR switch
degradation is a and the connected
problem. device are not the
same.
A segment or One or more devices
device is not are not properly
recognized as connected, or
part of the cabling does not
network. meet Ethernet
guidelines.
FDX/Col LED is Collisions are
blinking yellow occurring on the
excessively. connected segment.
Duplex modes are
mismatched.
Model GS504 4-Port Gigabit Switch Installation Guide
Solution
Check the power cord connections for the
switch and the connected device.
Make sure all cables used are correct and
comply with Ethernet specifications.
Check the crimp on the fiber connectors and
make sure that the plug is properly inserted
and locked into the port at both the switch
and the connecting device.
Make sure all cables used are correct and
comply with Ethernet specifications.
Check for a defective adapter card, cable, or
port by testing them in an alternate
environment where all products are
functioning.
Make sure the remote link partner is set to
autonegotiate or forced to full-duplex
operation.
Verify that the cabling is correct. Be sure all
cable connectors are securely positioned in
the required ports. Equipment may have
been accidentally disconnected.
Some collisions are normal when the
connection is operating in half-duplex mode.
Recheck the link partner settings.