NDC comm NWH4010 - Manual (Page 42)

36 InstantWave 11Mbps Wireless Networking Cards
I'm confused, some of the
wireless devices say they
are using 40 bit
encryption, others say
they are using 128 bit
and/or 64 bit. Are these
encryption levels
compatible with each
other? 128 bit WEP devices can be used with 40 or 64 bit
WEP devices as long as the device driver has a way to
set the lower encryption level. The encryption level
is determined by the encryption key length. If a
device is capable of 128 bit encryption, it is also
capable of 40 bit, unless the vendor decides for some
reason not allow the lower encryption level.
64 bit WEP is the same as 40 bit WEP. The lower
level of WEP encryption uses a 40 bit 10 hex
character secret key set by the user and a 24 bit
Initialization Vector which is not under user control.
Some vendors refer to this level of WEP as 40 bit,
others as 64 bit. Either way, they're the same
encryption level and can interoperate.
The higher level of WEP encryption, commonly
referred to as 128 bit WEP, actually uses a 104 bit ,
26 hex character secret key, set by the user and a 24
bit Initialization Vector which is not under user
control.
Problems Associating
with an Access Point Follow the instructions below if your client adapter
fails to associate with an access point.
I. If possible, move your workstation a few feet closer
to the access point and try again.
II. Make sure the NWH4010 USB adapter cable is
securely inserted in the computer's USB port and the
USB adapter.
III. Check that the access point is powered on and
operating.
IV. Check that all parameters are set properly for both
the USB client adapter and the access point. These
include the SSID, WEP activation, network type,
channel, etc.