User's Manual

Chapter 6 Troubleshooting
This chapter provides solutions to problems usually encountered during the installation and operation of
the WAP-4000.
The WAP-4000 cannot power up.
Use an electrical test meter to determine the output voltage of the power supply. Check if it
matched the specification of WAP-4000.
Cannot communicate with WAP-4000 through a wired LAN computer.
Check the following:
w WAP-4000 is properly installed, LAN connections are OK, and it is powered ON.
w Ensure that your PC and WAP-4000 are on the same network segment.
w If your PC is set to "Obtain an IP Address automatically" (DHCP client), restart it.
w If your PC uses a Fixed (Static) IP address, ensure that it is using an IP Address within the range
192.168.1.2 to 192.168.1.254 and thus compatible with WAP-4000's default IP Address of
192.168.1.1.
Also, the Network Mask should be set to 255.255.255.0 to match WAP-4000.
In Windows, you can check these settings by using Control Panel-Network to check the
Properties for the TCP/IP protocol.
My wireless client cannot associate with WAP-4000.
Check the following:
w Make sure the wireless adapter is compatible with IEEE 802.11b or 802.11g.
w Move the wireless client closer to WAP-4000.
w Ensure WAP-4000 and the wireless client have the same SSID.
w Ensure WAP-4000 and the wireless client have the same WEP encryption settings, if enabled.
w Confirm the WLAN LED of WAP-4000 is on.
w If the MAC filter is enabled, please make sure the wireless client is allowed to build the link.
w Ensure the operating mode is in “AP” mode.
The throughput rate is slow.
Check the following:
w Verify the antenna, connector, and cabling are well connected.
w Adjust the antenna, and make sure the antenna is not behind metal or any obstacle. If the
throughput increases after you move the client closer to WAP-4000, please consider to add
additional WAP-4000 and implement roaming.
w Verify the network traffic does not exceed 37% of bandwidth.
w Lower the broadcast rate of wired network to no more than 10 broadcast messages per second
w Verify wired network topology and configuration.