Enterasys Matrix 7H4382-49 Installation Guide Page 64

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Troubleshooting Checklist
4-6 Troubleshooting
Troubleshooting Checklist
Ifthemoduleisnotworkingproperly,refertoTable 42onpage 46forachecklistof
problems,possiblecauses,andrecommendedactionstoresolvetheproblem.
Table 4-2 Troubleshooting Checklist
Problem Possible Cause Recommended Action
All LEDs are OFF. Loss of power. Ensure that the DFE module was installed
properly according to the installation
instructions in Chapter 3, 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 Appendix A 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
Setting the Mode Switches” on page B-2
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 “Setting the
Mode Switches” on page B-2 for
instructions on how to set the mode
switch to reset the username/password
combination to the default values.
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