3Com Megahertz
Access Point User Guide
Troubleshooting 

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Troubleshooting

Check the following symptoms and their possible causes before contacting the 3Com Support Center.

Wired Network

Verify AP operation.

  1. If the AP does not power up, you may be experiencing one of the following:
  2. Faulty AP power supply
  3. Failed AC supply
  4. Electrical Management System (EMS) operating outlet
  5. After the AP resets and hardware is initialized, it performs an SRAM test. If the test passes, all three LEDs turn on. If the test fails, the LEDs all turn off and the AP resets. The LEDs turn off sequentially, in the order shown, as each of the following tests pass.
  6.  

    LED

    State

    Test Passed

    Power

    Blinks continuously

    Bootup and run-time codes downloaded to AP flash memory successful. Run-time code controls the AP.

    Wireless LAN Activity

    Off

    Serial port initialized, FIFO buffer flushed, serial port to AP connection checked.

    Wired LAN Activity

    Off

    LAN adapter present.

Identify wired network problems:

  1. No operation:
  2. AP powered on but has no connection to the wired network:
  3. Verify network wiring and topology for proper configuration:
  4. Slow or erratic performance:

Setting Up Wireless Clients

Refer to documentation for installing drivers, client software and testing. Use the default values for the WLAN service area and other configuration parameters until network connection verification.