Configuring Band Usage - Cisco Aironet CB21AG Installation And Configuration Manual

Chapter 5 Configuring the Client Adapter

Configuring Band Usage

If your AP coverage permits it, follow these steps to configure the client profile only in ADU to use the
5GHz (802.11a) or 2.4GHz (802.11b/g) band, not both:
Step 1 Launch ADU.
Step 2 Click Profile Management.
Step 3 Select the profile of interest and click Modify.
Click Advanced.
Step 4
Under Wireless Mode, uncheck the rates that you do not intend to use.
Step 5
If you do not use ADU to manage CB21AG, then you must use registry settings to select the rates. Follow
these steps:
1.
2.
For example, to support only 11b and 11g rates, the bitmask would be 0x04 + 0x08 = 0x0C = 12 decimal.
Cisco Aironet 802.11a/b/g Wireless LAN Client Adapters (CB21AG and PI21AG) Installation and Configuration Guide
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Launch regedit and navigate to the following entry:
HKLM\System\CurrentControlSet\Control\Class\{4D36E972-E325-11CE-BFC1-08002bE10318}
Right-click and choose Find and find the variable called "NetBand."
This variable will be under a four-digit subkey whose DriverDesc value is "Cisco Aironet
802.11a/b/g Wireless Adapter."
The NetBand REG_SZ variable is a bitmask of supported rates. By default, this variable it is set to
15 decimal (0x0F). The supported values are:
802.11a 0x01
–
(not used) 0x02
–
802.11b 0x04
–
802.11g 0x08
–
(not used) 0x10
–
Configuring Band Usage
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