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Troubleshooting Checklist
4-6 Troubleshooting
4.2 TROUBLESHOOTING CHECKLIST
If the 6H203-24 or 6H253-13 are not working properly, refer to Table 4-3 for a checklist of
possible problems, causes, and recommended actions to resolve the problem.
Table 4-3 Fault Identification
Symptom Possible Causes
All LEDs off. 1. Installation error - remove the module and perform installation
in accordance with installation instructions. Check connectors
for dust or dirt and clean as necessary.
2. Power system fault - refer to Table 4-4.
Module stays in BOOT
state.
1. Device does not have an operable firmware image, and is
sending out BootP requests in an effort to locate a BootP server
on the network. Press the RESET button on the front panel to
attempt to use the firmware image in FLASH memory.
2. If the problem continues after pressing the RESET button, refer
to Section B.1 for instructions on forcing a BootP image
download.
3. Contact Cabletron Systems if the problem continues.
Cannot access Local
Management.
1. Firmware image fault - refer to Table 4-5.
2. Management system fault - refer to Table 4-6.
Cannot contact device
through in-band
management.
1. Management system fault - refer to Table 4-6.
2. No link to device - verify all network connections between
network management station and the module are valid and
operating.
User parameters
(IP address, community
names, etc.) lost on reset
or power-up.
Device setup fault - refer to Table 4-7.
Device is not forwarding
traffic from any port.
Device setup fault - refer to Table 4-7.