Cabletron Systems pmn manual Troubleshooting Checklist, 2M46-04R/2M46-04RDC User’s Guide

Chapter 4: Troubleshooting

4.3TROUBLESHOOTING CHECKLIST

If the 2M46-04R 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.	Review network design and
standby for no		delete unnecessary loops.
apparent reason.		Call the Cabletron Systems
		Global Call Center if the
		problem continues.
User parameters (IP	Mode switch (7), NVRAM	Reenter the lost parameters
address, Device and	Reset, was changed	as necessary. Call the
Module name, etc.)	sometime before either	Cabletron Systems Global
were lost when the	cycling power or	Call Center if problem
2M46-04R power	pressing the RESET	continues.
was cycled or the	button causing the
front panel RESET	user-entered parameters
button was pressed.	to reset to factory default
	settings.

4-6 2M46-04R/2M46-04RDC User’s Guide