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Troubleshooting Checklist

4-6 Troubleshooting

If the module is not working properly, refer to 

on page 4‐6 for a checklist of 

problems, possible causes, and recommended actions to resolve the problem.

All LEDs are OFF.

Loss of power.

Ensure that the DFE module was installed 
properly according to the installation 
instructions in 

, and that the 

host chassis is providing power.

No Local 
Management 
Password screen.

Incorrect terminal setup.

Refer to the Enterasys Matrix 
DFE-Platinum Series Configuration Guide 
for proper setup procedures.

Improper console cable 
pinouts.

Refer to 

 for proper COM port 

pinouts.

Corrupt firmware image, or 
hardware fault.

If possible, attempt to download the 
image to the DFE module again. Refer to 
“

for instructions to clear NVRAM.

Cannot navigate 
beyond Password 
screen.

Improper username/ password 
combination entered.

If the username/password combination 
has been forgotten, refer to “

” on page B-2 for 

instructions on how to set the mode 
switch to reset the username/password 
combination to the default values.