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The FastHub 108T/104T LEDs facilitate troubleshooting during ongoing operation. Table 4-1 lists the causes of common problems along with the recommended response.
Table 4-1 Problems and Recommended Responses
| Symptom | Possible Cause | Corrective Action |
|---|---|---|
| Power LED does not come on | Power cord not connected | Plug in both ends of the power cord |
| Other | Contact Cisco or your authorized reseller | |
| Link/Receive LED does not come on | No cable inserted | Insert both ends of the cable into a device |
| Devices not powered | Ensure both devices have power | |
| Bad cable | Replace cable with a known good one | |
| Wrong cable type | Verify cable selection (crossover vs. straight-through) | |
| Disabled LED blinks | Device at other end malfunctioning | Investigate device at other end of cable from the disabled FastHub 108T/104T port |
| Bad cable | Replace cable with known good one |
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