Netgear XSM4324FS Hardware Installation Guide - Page 68

Troubleshooting chart

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M4300 Intelligent Edge Series Fully Managed Stackable Switches Troubleshooting chart The following table lists symptoms, causes, and solutions for possible problems. Table 9. Troubleshooting chart Symptom Cause Solution A Power LED is off. The switch is not receiving power. Check the power cable connections at the switch and the power source. Make sure that all cables are used correctly and comply with the Ethernet specifications. A combined speed and activity LED or an individual speed LED and an individual activity LED are off when the port is connected to a device. The port connection is not working. 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 are used correctly and comply with the Ethernet specifications. Check for a defective port, cable, or module by testing them in an alternate environment where all products are functioning. A file transfer is slow or the performance is degraded. One possible cause is that a broadcast storm occurred and that a network loop (redundant path) was created. Break the loop by making sure that only one path exists from any networked device to any other networked device. After you connect to the local browser interface, you can configure the Spanning Tree Protocol (STP) to prevent network loops. A segment or device is not recognized as part of the network. One or more devices are not properly connected, or cabling does not meet Ethernet guidelines. Verify that the cabling is correct. Make sure that all connectors are securely positioned in the required ports. It is possible that equipment was accidentally disconnected. A combined speed and activity LED or an individual speed LED and an individual activity LED are blinking continuously on all connected ports and the network is disabled. A network loop (redundant path) was created. Break the loop by making sure that only one path exists from any networked device to any other networked device. After you connect to the local browser interface, you can configure the Spanning Tree Protocol (STP) to prevent network loops. A unit is linked to a stack but does not join the stack. The stacking ports of the new unit are configured differently from the stack, or the unit is configured as a standalone unit. Remove the unit from the stack. Use the local browser interface to configure the unit as a stackable unit, with combo links used as the stacking ports. Maintenance and Troubleshooting 68 Hardware Installation Guide

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Troubleshooting chart
The following table lists symptoms, causes, and solutions for possible problems.
Table 9. Troubleshooting chart
Solution
Cause
Symptom
Check the power cable connections at the switch
and the power source.
Make sure that all cables are used correctly and
comply with the Ethernet specifications.
The switch is not receiving
power.
A Power LED is off.
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 are used correctly and
comply with the Ethernet specifications.
Check for a defective port, cable, or module by
testing them in an alternate environment where all
products are functioning.
The port connection is not
working.
A combined speed and
activity LED or an individual
speed LED and an individual
activity LED are off when the
port is connected to a
device.
Break the loop by making sure that only one path
exists from any networked device to any other
networked device. After you connect to the local
browser interface, you can configure the Spanning
Tree Protocol (STP) to prevent network loops.
One possible cause is that a
broadcast storm occurred
and that a network loop
(redundant path) was
created.
A file transfer is slow or the
performance is degraded.
Verify that the cabling is correct.
Make sure that all connectors are securely
positioned in the required ports. It is possible that
equipment was accidentally disconnected.
One or more devices are not
properly connected, or
cabling does not meet
Ethernet guidelines.
A segment or device is not
recognized as part of the
network.
Break the loop by making sure that only one path
exists from any networked device to any other
networked device. After you connect to the local
browser interface, you can configure the Spanning
Tree Protocol (STP) to prevent network loops.
A network loop (redundant
path) was created.
A combined speed and
activity LED or an individual
speed LED and an individual
activity LED are blinking
continuously on all
connected ports and the
network is disabled.
Remove the unit from the stack. Use the local
browser interface to configure the unit as a
stackable unit, with combo links used as the stacking
ports.
The stacking ports of the new
unit are configured
differently from the stack, or
the unit is configured as a
standalone unit.
A unit is linked to a stack but
does not join the stack.
Hardware Installation Guide
68
Maintenance and
Troubleshooting
M4300 Intelligent Edge Series Fully Managed Stackable Switches