A
T
ROUBLESHOOTING
This appendix explains how to identify and correct problems, and how to
perform related diagnostic tasks.
If you have problems that are not addressed in this chapter, contact
3Com Technical Support or your service person. Refer to Appendix F
for
technical support information.
Power-on Self Test
(POST)
When the VCN Access Point is plugged-in, the VCN AP immediately starts
the power-on self test (POST) sequence as indicated by the power LED
flashing in green. If the VCN AP is not powered, the power LED remains
OFF. Check the power connections and the ac/dc adapter.
The power-on self test verifies that every component of the VCN AP is
fully functional. The power-on self test lasts for 30 seconds at the most,
during which time it is orange. If the power-on self test is successfully
completed, the power
LED turns green. If the power-on self test detected
a VCN AP failure, the power LED remains orange. In this case, contact
3Com technical support; refer to Appendix F
, Technical Support.
Use the front panel LEDs to determine each port’s status:
Tabl e 7
Determining VCN AP Status During POST
State Ethernet Line Power Notes
Off - - Off VCN AP is not connected to a
power source or failed.
Power-on - - Orange Test is in progress
Power-on - - Off VCN AP failed
