Troubleshooting checklist, Troubleshooting checklist -4 – Enterasys Networks 2G4072-52 User Manual
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Troubleshooting Checklist
4-4 Troubleshooting
Troubleshooting Checklist
If the 2G4072‐52 is not working properly, refer to
for a checklist of problems,
possible causes, and recommended actions to resolve the problem.
Table 4-2 Troubleshooting Checklist
Problem
Possible Cause
Recommended Action
All LEDs are
OFF.
Loss of power.
Ensure the 2G4072-52 was installed properly according to
the installation instructions in
chassis has power.
No Local
Management
Password
screen.
Incorrect terminal setup.
Refer to the Enterasys Matrix N Standalone 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
2G4072-52 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
for instructions on how to set the mode
switch to reset the username/password combination to the
default values.
Cannot contact
the 2G4072-52
through in-band
management.
IP address not assigned.
Refer to the Enterasys Matrix N Standalone Series
Configuration Guide for the IP address assignment
procedure.
Port is disabled.
Enable port. See Enterasys Matrix N Standalone Series
Configuration Guide for instructions to enable/disable
ports.
Host Port policy and/or
management VLAN is incorrectly
configured, or not configured.
Verify that a management VLAN exists and that it is
associated with the Host Port.
Refer to the Enterasys Matrix N Standalone Series
Configuration Guide for information about Host Port and
management VLAN configuration.
No link to device.
Verify that all network connections between the network
management station and the 2G4072-52 are valid and
operating.
If the problem continues, contact Enterasys Networks for
technical support.