C1240 K9w7 Tar 124 25d Ja2 Tar 26 [patched] Jun 2026

This file is the autonomous (non-controller based) IOS software bundle for Cisco 1240 Series Access Points. : Specifically for the Aironet 1240 series.

The most common application of the c1240-k9w7-tar.124-25d.JA2.tar image is to convert a Cisco 1240 series access point from a controller-managed device into a fully autonomous one. The procedure relies on a TFTP server and the access point's MODE button for a low-level recovery.

: To connect the AP to the computer (direct connection is recommended). Step-by-Step Conversion Process (Lightweight to Autonomous)

: Copy your source file within the TFTP directory and create an exact duplicate renamed specifically to c1240-k9w7-tar.default . C1240 K9w7 Tar 124 25d Ja2 Tar 26

This file is an archive containing the IOS image, radio firmware, and HTML GUI files. It must be unbundled using the archive command rather than just copied to flash. Performance and Stability Review

Search for "T.O. 1C-124A-1" (Flight Manual) or "T.O. 1C-124A-2" (Maintenance Manual).

Assign a static IP address to your computer's Ethernet adapter inside the 10.0.0.X subnet (e.g., 10.0.0.2 with a subnet mask of 255.255.255.0 ). The AP defaults to 10.0.0.1 during a bootloader recovery. This file is the autonomous (non-controller based) IOS

: Use the archive download-sw command to unbundle the image into flash.

Are you executing this conversion via the or through the Web browser GUI interface ?

: Check your local operating system firewall settings to ensure UDP Port 69 is fully unblocked. If using the physical Mode button recovery process, confirm that the file is renamed exactly to lowercase c1240-k9w7-tar.default and that your server's static IP is exactly 10.0.0.2 . The procedure relies on a TFTP server and

When the AP boots, break into the console and configure it to have an IP address in the same subnet as your TFTP server.

Upgrading to this specific version ensures your AP is running a secure, final release of the 12.4 branch, which is crucial for continued stability. Pre-requisites for Conversion Before you attempt the upgrade, you will need: