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An AP Fails to Start
Possible Cause
- The PSE does not support the PoE function or is faulty.
- The PSE does not support the power supply mode required by the AP.
- The output power of the PSE is insufficient.
- The PSE is incorrectly configured, for example, the PoE function is disabled or the PoE power-off time range is incorrectly set.
- The Ethernet cable or power cable is damaged or not securely connected.
- The AP is faulty.
Troubleshooting Procedure
Check whether the power indicator and network cable indicator of the AP blink normally. For details about indicators, see WLAN Hardware Installation and Maintenance Guide.
If not, perform the following operations:
- If the AP is powered in PoE mode, check whether the PSE supports the PoE function and whether the PSE is faulty.
- Check whether the output power mode of the PSE is the same as the power supply mode required by the AP.
- Check whether the output power of the PSE can support the maximum power consumption of the AP.
- Check whether the PSE is configured incorrectly, for example, the PoE function is disabled or the power-off time range is set correctly.
- Check whether the Ethernet cable and power cable are connected properly. Replace the Ethernet cable with a high-quality 8-core Ethernet cable and perform the test again.
- If the fault persists, the AP may be faulty. In this case, contact technical support personnel or the agent to replace the AP with a new one.
