Netgear GS748Tv5 - ProSAFE 48-port Gigabit Smart Switch Guia Do Administrador
Troubleshooting
261
GS716Tv3, GS724Tv4, and GS748Tv5 Smart Switches
Troubleshooting Chart
The following table lists symptoms, causes, and solutions of possible problems.
Table 79. Troubleshooting chart
Symptom
Cause
Solution
Power LED is off.
No power is received.
Check the power cord connections for
the switch at the switch and the
connected AC power source.
the switch at the switch and the
connected AC power source.
Link/ACT LED is off
when a cable
connects the port to
a valid device.
when a cable
connects the port to
a valid device.
Port connection is not working.
•
Check the crimp on the
connectors, and make sure that
the plug is correctly inserted and
locked into the port at both the
switch and the connecting device.
connectors, and make sure that
the plug is correctly inserted and
locked into the port at both the
switch and the connecting device.
•
Ensure that all cables are used
correctly and comply with the
Ethernet specifications.
correctly and comply with the
Ethernet specifications.
•
Check for a defective adapter
card, cable, or port by testing
them in an alternate environment
where all products are
functioning.
card, cable, or port by testing
them in an alternate environment
where all products are
functioning.
File transfer is slow,
or performance
degradation is a
problem.
or performance
degradation is a
problem.
Half- or full-duplex setting on the switch
and the connected device are not the
same.
and the connected device are not the
same.
Make sure that the attached device is
configured to autonegotiate.
configured to autonegotiate.
A segment or device
is not recognized as
part of the network.
is not recognized as
part of the network.
One or more devices are not connected
correctly, or cabling does not meet
Ethernet guidelines.
correctly, or cabling does not meet
Ethernet guidelines.
Verify that the cabling is correct.
Ensure that all connectors are
securely positioned in the required
ports. Equipment could have been
accidentally disconnected.
Ensure that all connectors are
securely positioned in the required
ports. Equipment could have been
accidentally disconnected.
Link/ACT LED is
flashing continuously
on all connected
ports, and the
network is disabled.
flashing continuously
on all connected
ports, and the
network is disabled.
A network loop (redundant path) has
been created.
been created.
Break the loop by ensuring that there
is only one path from any networked
device to any other networked device.
is only one path from any networked
device to any other networked device.