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61203153L2-20 Express 3000 User Manual 8-1
Chapter 8
Troubleshooting
TROUBLESHOOTING GUIDELINES
This section provides troubleshooting techniques to resolve problems
that may be encountered while operating the Express 3000. If prob-
lems persist, contact ADTRAN technical support for assistance (see
the inside back cover of this manual for more information). Topics
covered in this chapter are listed below:
•
PWR / LINE LED is off.
See page 8-2
•
PWR / LINE LED flashes, and 1 and 2 LEDs are off.
See page 8-2
•
PWR / LINE LED, and 1 and 2 LEDs flash green.
See page 8-2
•
Dial-up connection problems.
See page 8-4
•
Auto-detect Switch SPIDs remains at Link Down.
See page 8-5
•
Express 3000 not detected.
See page 8-6
•
External analog modem not detected.
See page 8-6
•
Difficulty with 230.4 kbps operation.
See page 8-7
•
Dial-up networking difficulty.
See page 8-7