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Symptom
LEDs do not flash
at power-up
LEDs do not
light up/blink
Poss. Cause
Power switched off
Power cord not connected
Fuse defect
No cable inserted
Router not
powered up
Wrong cable type
Bad cable
Delay in connecting Router
to Token Ringdevice
Action
Switch on
Plug in Router
Replace fuse
Connect to hubs
and Router
Check power supply
for Router
Verify cable selection
Replace cable
Power off and
power on again
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