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Troubleshooting Checklist
If the module is not working properly, refer to Table
possible causes, and recommended actions to resolve the problem.
Table 4-2 Troubleshooting Checklist
Problem
All LEDs are OFF.
No Local
Management
Password screen.
Cannot navigate
beyond Password
screen.
Cannot contact the
module through
in-band
management.
Possible Cause
Loss of power.
Incorrect terminal setup. Refer to the Matrix DFE-Gold Series Configuration
Improper console cable
pinouts.
Corrupt firmware image,
or hardware fault.
Improper username/
password combination
entered.
IP address not
assigned.
Port is disabled.
Host Port policy and/or
management VLAN is
incorrectly configured,
or not configured.
No link to device.
Matrix DFE-Gold Series PoE Module 4H4285-49 Installation Guide 4-7
4‐2 for a checklist of problems,
Recommended Action
Ensure that the module was installed properly
according to the installation instructions in
Chapter
3, and that the host chassis is providing
power.
Guide for proper setup procedures.
Refer to
Appendix A
for proper COM port pinouts.
If possible, attempt to download the image to the
module again. Refer to
Switches"
on page B-2 for instructions to clear
NVRAM.
If the username/password combination has been
forgotten, refer to Refer to
Switches"
on page B-2 for instructions on how to
set the mode switch to reset the username/
password combination to the default values.
Refer to the Matrix DFE-Gold Series Configuration
Guide for the IP address assignment procedure.
Enable port. Refer to the Matrix DFE-Gold Series
Configuration Guide for instructions to enable/
disable ports.
Verify that a management VLAN exists and that it
is associated with the Host Port.
Refer to the Matrix DFE-Gold Series Configuration
Guide for information about Host Port and
management VLAN configuration.
Verify that all network connections between the
network management station and the module are
valid and operating.
If the problem continues, contact Enterasys
Networks for technical support.
Troubleshooting Checklist
"Setting the Mode
"Setting the Mode
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Table of Contents
Troubleshooting
