User Manual

Troubleshooting 65
Common Technical Support Questions
This section discusses some of the most common problems using a Harmony 802.11a
network adapter and offers possible solutions.
Symptom/Question Possible Solution/Answer
I installed the adapter card in the
computer before running
SETUP.EXE . What should I do?
Follow the on-screen instructions to install
the adapter using Microsoft’s Add New
Hardware Wizard. When prompted, point
the Wizard to search the Harmony
Installation CD for driver files. Then, after
you have installed the driver, run
SETUP.EXE
from the Harmony Installation CD to install
the Harmony utility.
My office has an existing 802.11b
network. Are the Harmony 802.11a
adapters compatible?
No. 802.11a devices are not compatible with
802.11b devices.
I want to install a Harmony 802.11a
network in my office that has an
existing 802.11b network. Will the
802.11a network interfere with the
802.11b network?
No. 802.11a and 802.11b devices will not
interfere with each other since they operate
at different frequencies. 802.11a devices
operate in the 5 GHz band, and 802.11b
devices operate in the 2.4 GHz band.
Is a Harmony 802.11a network
adapter compatible with 802.11a
products from other vendors?
Yes, the Harmony 802.11a adapters are
interoperable with 802.11a-compliant
products from other vendors. However, if
you use 2X mode to achieve data rates up to
108 Mbps, a Harmony 802.11a adapter is
only compatible with other 802.11a products
from Proxim.
In throughput tests, the 802.11a
network adapter doesn’t seem to
transfer data as quickly as I’d
expect.
Data rate is the raw signaling rate of a
networking device; it does not equal data
throughput. Actual data throughput is
always less than the data rate since some of
the available bandwidth is used to send
control messages and regulate activity over
the wireless medium. Also, throughput will
depend on several factors such as network
overhead, the file transfer program in use,
the computer’s operating system, and the
computer’s processor speed.