Chapter 3 Troubleshooting; Troubleshooting Chart - NETGEAR ProSafe JGSM7224 Hardware Installation Manual

3.
Troubleshooting

Troubleshooting Chart

The following table lists symptoms, causes, and solutions of possible problems.
Table 1. Troubleshooting Chart
Problem
Power LED is off.
Link LED is off or intermittent. Port connection is not
File transfer is slow, or
performance degradation is a
problem.
Cause
No power is received
working.
Half or full duplex setting on
the switch and the connected
device are not the same.
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Solution
Check the power cord connections for the
switch at the switch and the connected
device.
Make sure that all cables used are correct
and comply with Ethernet specifications.
Check the crimp on the 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 that all cables used are correct
and comply with Ethernet specifications.
See Technical Specifications
Appendix A.
Check for a defective adapter card, cable,
or port by testing it in an alternate
environment where all products are
functioning.
Make sure that the attached device is set to
auto negotiate.
Check the system message log.
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