User's Manual

Wireless Networking 67
to operate in Infrastructure mode. Ad Hoc mode is not supported by the
Access Point.
■ If you have a wired and wireless NIC in the same computer, ensure that the
wired NIC is disabled.
■ Check the status of the Access Point Wireless LED, it should be lit if
wireless is enabled and will flash when there is wireless activity. If not lit
go to “
Wireless Settings” on page 35 and enable wireless networking.
■ Ensure that the TCP/IP settings for all devices are correct.
■ Ensure that the Wireless Clients are using the same SSID or Service Area
Name as the Access Point. The SSID is case-sensitive
■ Ensure that you are using the same level of security on all of your wireless
computers (None, 40/64 or 128 bit) and that all devices are using the same
keys, and the same order of keys where appropriate.
■ Ensure that you have the Wireless computer enabled in the list of allowed
MAC addresses if you are using Wireless Connection control on the
Access Point.
■ If you are having difficulty connecting or are operating at a low speed try
changing the antenna positions on the rear of the Access Point. For more
effective coverage you can try reorientating your antennae. Place one
antenna vertically and one horizontally to improve coverage. Additionally
consider moving the wireless computer closer to the Access Point to
confirm that the building structure or fittings are not adversely affecting
the connectivity. If this resolves the problem consider relocating the
Wireless computer or select Clear Channel Select on the Access Point.
■ Sources of interference: The 2.4Ghz ISM band is used for 802.11b. This is
generally a licence free band for low power applications, and you may
have other devices at your location that operate in this frequency band.
You should take care to ensure that there are no devices like microwave
ovens for example close to the Access Point or wireless computers as this
could affect receiver sensitivity and reduce the performance of your
network. If you are unsure try relocating both the wireless computers and
the Access Point to establish whether this problem exists.
■ Most wireless computer Adapters will scan the channels for the wireless
Access Point. If a wireless computer has not located the Access Point then
try initiating a search manually if the client software supports this feature
or manually set the channel on your wireless computer to correspond to the
Access Point channel number. Please refer to your Wireless computer
adapter documentation and vendor to do this.