Cabletron Systems 2E43-27R, 2E42-27 manual 4 Troubleshooting Checklist, Problem, Possible Cause

Chapter 4: Troubleshooting

4.3TROUBLESHOOTING CHECKLIST

If the 2E4X-27 is not working properly, refer to Table 4-4for a checklist of possible problems, causes, and recommended actions to resolve the problem.

Table 4-4 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.	Check the installation.
No Local	Autobaud is enabled.	Press ENTER (RETURN)
Management		(may take up to four times).
Password screen.
	Terminal setup is not	Refer to Chapter 5 for proper
	correct.	setup procedures.
	Improper console cable	Refer to Appendix A for
	used.	proper console port pinouts.
Cannot contact the	Improper Community	Refer to Chapter 5
device from in-band	Names Table.	for Community Names Table
management.		setup.
	IP address not assigned.	Refer to Chapter 5 for IP
		address assignment
		procedure.
	Port is disabled.	Enable port.
	No link to device.	Check link to device.
Port(s) goes into	Loop condition detected.	1. Review the network design
standby for no		and delete unnecessary
apparent reason.		loops.
		2. Call the Cabletron Systems
		Global Call Center if the
		problem continues.
User parameters (IP	Mode switch (7), NVRAM	1. Reenter the lost
address, Device and	Reset, was changed	parameters as necessary.
Module name, etc.)	sometime before either	2. Call the Cabletron Systems
were lost when the	cycling power or	Global Call Center if the
2E4X-27 power was	pressing the RESET	problem continues.
cycled or the front	button causing the
panel RESET button	user-entered parameters
was pressed.	to reset to factory default
	settings.

4-6 2E42-27/2E42-27R/2E43-27/2E43-27R User’s Guide