Enterasys Networks 2H252-25R manual Troubleshooting Checklist, Local Management User’s Guide

Troubleshooting Checklist

4.2TROUBLESHOOTING CHECKLIST

If the 2H252-25R is not working properly, refer to Table 4-2for 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	Autobaud is enabled, but the	Press ENTER (RETURN) (may
Password screen.	baud rate has not yet been	take up to four times).
	detected.
	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	Refer to Appendix A for proper
	pinouts.	console port pinouts.
	Corrupt firmware image, or	If possible, attempt to download
	hardware fault.	the image to the 2H252-25R again.
		Refer to Section B.3 for
		instructions to clear NVRAM.

4-6Troubleshooting