Enterasys Networks 2H252-25R - Manual (Page 44)

Troubleshooting Checklist
4-6 Troubleshooting
4.2 TROUBLESHOOTING CHECKLIST
If the 2H252-25R is not working properly, refer to Table 4-2 for a checklist of possible problems,
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. Check for proper connection of the
power cable and its access to a live
outlet.
Installed improperly. Ensure that the 2H252-25R was
installed properly according to the
installation instructions in
Chapter 3 .
No Local Management
Password screen. Autobaud is enabled, but the
baud rate has not yet been
detected. Press ENTER (RETURN) (may
take up to four times).
Terminal setup is not correct. Refer to the SmartSwitch Series
2E253, 2H252, 2H253 and 2H258
Local Management User’s Guide
for proper setup procedures.
Improper console cable
pinouts. Refer to Appendix A for proper
console port pinouts.
Corrupt firmware image, or
hardware fault. If possible, attempt to download
the image to the 2H252-25R again.
Refer to
Section B.3 for
instructions to clear NVRAM.