Additional Troubleshooting Suggestions - NETGEAR GSM7328Sv1 - ProSafe 24+4 Gigabit Ethernet L3 Managed Stackable Switch Hardware Installation Manual

Managed Stackable Layer 3 Switches GSM7328S v2 and GSM7352S v2 Hardware Installation
Table 4-1. Troubleshooting Chart (continued)
Problem
A segment or device is
not recognized as part of
the network.
ACT LED is flashing
continuously on all
connected ports and the
network is disabled

Additional Troubleshooting Suggestions

If the suggestions in
suggestions in this section.
• Network Adapter Cards
Make sure that the network adapter cards installed in the PCs are in working condition and the
software driver has been installed.
• Configuration:
If problems occur after you change the network configuration, restore the original
connections. Then find the problem by making the changes, one step at a time. Make sure that
cable distances, repeater limits, and other physical aspects of the installation do not exceed the
Ethernet limitations.
• Switch Integrity:
You can verify the integrity of the switch by resetting the switch. To reset the switch, use the
Tools> Reset command or remove AC power from the switch and then reapply AC power. If
the problem continues, contact NETGEAR technical support.
• Auto-Negotiation:
The copper 10/100/1000 Mbps ports negotiate the correct duplex mode and speed if the device
at the other end of the link supports auto-negotiation. If the device does not support auto-
negotiation, the switch only determines the speed correctly and the duplex mode defaults to
half-duplex. The fiber gigabit ports negotiate speed, duplex mode, and flow control, provided
that the attached device supports auto-negotiation.
4-2
Cause
One or more devices are
not properly connected,
or cabling does not meet
Ethernet guidelines.
A network loop
(redundant path) has
been created.
Table 4-1 do not resolve your problem, refer to the troubleshooting
v1.0, July 2009
Solution
Verify that the cabling is correct.
Be sure that all connectors are
securely positioned in the required
ports. Equipment may have been
accidentally disconnected.
Break the loop by ensuring that
there is only one path from any
networked device to any other
networked device.
Troubleshooting