SMC Networks SMCWUSBT-G - Manual (Page 30)

Chapter 3: Utility Configuration
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The wireless adapter must match the wireless mode and channel of the
clients it associates to.
802.11a
Authentication
Mode
Select what mode the wireless adapter uses to authenticate to an
access point:
Auto causes the adapter to attempt authentication using Shared, but
switches it to open authentication if Shared fails.
Open enables an adapter to attempt authentication regardless of its
WEP settings. It will only associate with the access point if the WEP
keys on both the adapter and the access point match.
Shared only allows the adapter to associate with access points that
have the same WEP key.
Note
The Utility only allows the creation of 16 configuration profiles. After the
creation of 16 profiles, clicking the New button displays an error
message. Remove an old profile or modify an existing profile for a new
use.
Infrastructure (Access Point) Mode
In infrastructure (access point (AP)) mode, the wireless network adapter participates in a basic
service set (BSS) as a station, and communicates with the other stations through an AP, as
illustrated here.