Cabletron Systems manual Troubleshooting Checklist, 2H23-50R/2H33-37R User’s Guide

Troubleshooting Checklist

4.3TROUBLESHOOTING CHECKLIST

If the 2H23-50R 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	Using incorrect	Refer to Chapter 5
2H23-50R from	Community Name.	for Community Name setup.
in-band
	The device does not	Refer to Chapter 5 for IP
management.
	have an IP address	address assignment
	assigned.	procedure.
	Port is disabled.	Enable port.
	No link to device.	Check link to device.
Port(s) goes into	The device detected a	1.Review network design and
standby for no	loop condition.	delete unnecessary loops.
apparent reason.		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
2H23-50R power	pressing the RESET	problem continues.
was cycled or the	button causing the
front panel RESET	user-entered parameters
button was pressed.	to reset to factory default
	settings.

2H23-50R/2H33-37R User’s Guide 4-7