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Troubleshooting Checklist
8H02-16 User’s Guide 4-5
4.3 TROUBLESHOOTING CHECKLIST
If the 8H02-16 is not working properly, refer to Table 4-4 for a checklist
of possible problems, causes, and recommended actions to resolve the
problem.
Table 4-4 Troubleshooting Checklist
Problem Possible Cause Recommended Action
All LEDs are OFF. Loss of Power to the
8H02-16.
Check the proper connection
of the power cable and its
access to a live outlet.
8H02-16 not properly
installed.
Check the installation.
No Local
Management
Password screen.
Autobaud not enabled. Press ENTER (RETURN)
(may take up to four times).
Terminal setup is not
correct.
Refer to Chapter 5 for proper
setup procedures.
Improper console cable
pinouts.
Refer to Appendix A for
proper console port pinouts.
Cannot contact the
8H02-16 from
in-band
management.
Improper Community
Names Table.
Refer to Chapter 6
for Community Names Table
setup.
8H02-16 does not have
an IP address.
Refer to Chapter 6 for IP
address assignment
procedure.
Port is disabled. Enable port.
No link to device. Check link to device.
Port(s) goes into
standby for no
apparent reason.
8H02-16 detects a
looped condition.
Discuss these configurations
with Cabletron Systems
Technical Support before
implementing them into your
network.
User parameters
(IP address, Device
and Module name,
etc.) are lost when
the 8H02-16 is
powered down or
the front panel
RESET button is
pressed.
Position of the NVRAM
RESET switch was
changed before the last
power down or pressing
of the RESET button,
causing the user-entered
parameters to reset to
factory default settings.
Reenter the lost parameters
as necessary. Call Cabletron
Systems Technical Support if
problem continues.