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Chapter 5
Troubleshooting
This chapter contains information on how to troubleshoot the switch in the
event that a problem occurs.
Note
If you are still unable to resolve the problem after following the
instructions in this chapter, contact ATI Technical Support for
assistance.
Device not
operating
correctly
Check the PWR LED on the front of the switch. If the LED is OFF, indicating that the unit is
not receiving power, do the following:
Ensure that the power cord is securely connected to the power source
and to the AC connector on the back panel of the switch.
Verify that the power outlet has power by connecting another device to
it.
Try connecting the unit to another power source.
Try using a different power cord.
Verify that the voltage from the power source is within the required
levels for your region.
Verify that the LNK/ACT LED for each port is ON. If a LNK/ACT LED is
OFF, do the following:
Verify that the end-node connected to the port is powered ON and is
operating properly.
Verify that the twisted pair cable is securely connected to the port on
the switch and to the port on the end-node.
Ensure that the twisted pair cable does not exceed 100 meters (328
feet).
Verify that you are using Category 5 twisted pair cable.
Cannot connect
using Telnet, Web
browser, or
SNMP software
Be sure the switch is powered up.
Check network cabling between the management station and the
switch.
Check that you have a valid network connection to the switch and that
the port you are using has not been disabled.
Be sure you have configured the VLAN interface through which the
management station is connected with a valid IP address, subnet mask
and default gateway.