# Troubleshooting

## Performing Pings

An access point sends a ping packet to a computer and waits for a response. Use pings to evaluate signal strength between two stations. The other station can exist on any access point interface.

| NOTE: This ping operates at the MAC level and not at the Internet Control Message Protocol (ICMP) level.

No pings returned or fewer pings returned than sent can indicate a communication problem between the access point and the other station.

To ping another station:

1. Select the Show Mobile Units screen from the Main Menu.
2. Select Regular from the Show Mobile Units screen.
3. Press the TAB key to highlight the MAC address of the station to ping.
4. Select Ping-[F1] to display the Packet Ping Setup screen:
5. Enter the number of echo requests ( 1 to 539 ), length of packets in bytes ( 1 to 539 ) and data content in hex ( 0x00 to 0xFF ).
6. Select Start-[CR] to begin. The access point dynamically displays packets transmitted and received.

## Before Contacting Support

If you have problems with your wireless network, check the following before contacting the Intel Support Center:

### Verify access point operation:

- If the access point does not power up, make sure the power supply is connected to an AC outlet with power, and connected to the access point.
- After the access point resets and hardware is initialized, it performs an SRAM test. If the test passes, the LEDs illuminate. If the test fails, the LEDs all turn off and the access point resets. The LEDs turn off sequentially as each test passes.

### Identify wired network problems:

- Check access point configuration through Telnet, PPP or Web browser. Review procedures for Ethernet and serial connection of the access point. Review access point firmware revisions and update procedures.
- Verify network configuration by ensuring that there are no duplicate IP addresses. Power down the device in question and ping the assigned address of the device. Make sure that no other device responds to that address.
- If the access point is powered on but has no connection to the wired network, check connections for proper wiring.

### Check network wiring and topology for proper configuration:

- Check that the cables used have proper pinouts and connectors.
- Check router configuration and filtration settings.
- Make sure that network use does not exceed 37 percent of bandwidth.
- Check client operations.
- Confirm access point and client SSID.
- Make sure that the radio driver loaded properly.
- Make sure that the client computer PROTOCOL.INI or NET.CFG file is compatible with the network operating system.

### If performance is slow or erratic:

- Check client computer and RF communications range.
- Check antenna, connectors and cabling.
- Check the access point antenna diversity setting is appropriate.
  Full Diversity : The radio receives on the antenna that has the best signal and transmits on the last antenna it received on.
  Primary Only : The radio transmits and receives on the primary antenna only.
  Secondary Only : The radio transmits and receives on the secondary antenna only.
  Rx Diversity : The radio receives on the antenna that has the best signal and transmits on primary antenna.
- Make sure network traffic does not exceed 37% of bandwidth.
- Check to see that the wired network does not exceed 10 broadcast messages per second.
- Check the wired network topology and configuration.

For more troubleshooting information, browse the Intel Customer Support Web site
( http://support.intel.com ).

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