User`s guide

Troubleshooting Checklist
4-8 Troubleshooting
Table 4-5 Firmware Troubleshooting
Possible Causes Instruction
Autobaud enabled. Press ENTER (RETURN) (may take up to four times).
Terminal setup is not
correct.
Refer to the Local Management User’s Guide for the setup
procedures.
Improper console cable
pinouts.
Refer to Appendix A for proper console port pinouts.
The COM port of the
device disabled, or the
COM port application
has been changed.
1. Establish a Telnet connection to the device.
2. Refer to the Local Management User’s Guide for instructions on
enabling/disabling the COM port and changing the COM port
application.
Corrupt firmware image,
or hardware fault.
1. If possible, attempt to download the image to the device again.
Refer to Section B.1 for instructions on how to force a download
of a new firmware image.
2. Contact Cabletron Systems if the problem continues.