Cabletron Systems 2200 manual Troubleshooting Checklist, Off

Troubleshooting Checklist

4.2TROUBLESHOOTING CHECKLIST

If the 2E253-49R is not working properly, refer to Table 4-2for 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	Loss of power.	Check for proper connection of the power
OFF.		cable and its access to a live outlet.
	Installed improperly.	Ensure that the 2E253-49R was installed
		properly according to the installation
		instructions in Chapter 3.
No Local	Autobaud is enabled, but	Press ENTER (RETURN) (may take up to
Management	the baud rate has not yet	four times).
Password screen.	been detected.
	Terminal setup is not	Refer to SmartSwitch Series 2E253, 2H252,
	correct.	2H253, and 2H258 Local Management
		User’s Guide for proper setup procedures.
	Improper console cable	Refer to Appendix A for proper console port
	pinouts.	pinouts.
	Corrupt firmware image,	If possible, attempt to download the image to
	or hardware fault.	the 2E253-49R again. Refer to Section B.3
		for instructions to clear NVRAM.
Cannot navigate	Improper Community	1. Refer to SmartSwitch Series 2E253,
beyond Password	Names Table.	2H252, 2H253, and 2H258 Local
screen.		Management User’s Guide for the
		Community Names Table setup.
		2. If the Community Names have been
		forgotten, refer to Section B.3 for
		instructions on how to set the mode switch
		to reset the Community Names to their
		default values.

Troubleshooting 4-5