: Choose "Embedded Wireless Controller on Catalyst Access Points" to find the specific IOS XE image.
To set up a on your Catalyst access points, you must first obtain the correct software image from the Cisco Software Central portal . This solution allows a Catalyst 9100 series AP to act as a wireless controller, managing up to 50 access points and 1,000 clients without a dedicated appliance. 1. Downloading the EWC Software
: Type "Embedded Wireless Controller" or your specific AP model (e.g., "Catalyst 9120AX").
: For a standard installation, download the .tar image bundle. This bundle typically includes the controller software and the AP images needed for other APs in your network.
If your AP is currently running a standard "Lightweight" image, you must convert it to the EWC image using a TFTP or SFTP server.
As of March 31, 2026 , direct CCO (Cisco.com) image downloads from the controller GUI/CLI are no longer supported. You must manually download images from the Cisco Software site and host them on a local TFTP, SFTP, or HTTP server. 2. Supported Hardware for EWC
Not all Catalyst APs can host the controller software. Below is the compatibility for primary (controller) and subordinate roles: Access Point Series Can Host EWC? (Primary) Can Join EWC? (Subordinate) Catalyst 9124AX, 9130AX Catalyst 9105AXI Catalyst 9105AXW (Wall Plate) No Aironet Wave 2 (3800, 2800, etc.) No 3. How to Install & Convert a Lightweight AP to EWC