Solution
The Aironet Desktop Utility (ADU) supports a maximum of 16 profiles. Refer to the Configuring the Client Adapter section of Cisco Aironet 802.11a/b/g Wireless LAN Client Adapters (CB21AG and PI21AG) Installation and Configuration Guide, Release 2.5 for more information on the client devices.
The profile manager feature of the Aironet Client Utility (ACU) allows you to create and manage up to 16 profiles for your client adapter.
Refer to for more information on the profile manager: