Ap3g2-k9w7-tar.153-3.jf15.tar
As of 2024-2025, the 15.3(3)JF15 release is past its End-of-Support (EoS) date. Cisco no longer releases security patches for this train. While the Aironet 3600 and 2600 series are solid performers, using them in a production environment today exposes your network to known vulnerabilities (e.g., KRACK, CacheOut).
Recommendation:
| AP Series | Models |
|-----------|--------|
| 3600 Series | AIR-CAP3602I, AIR-CAP3602E, AIR-LAP3602I, AIR-LAP3602E |
| 3700 Series | AIR-CAP3702I, AIR-CAP3702E, AIR-LAP3702I, AIR-LAP3702E |
| 2700 Series | AIR-CAP2702I, AIR-CAP2702E |
| 1700 Series | AIR-CAP1702I (partial support) |
| 3500 Series | ❌ Not compatible (uses ap3g1) | Ap3g2-k9w7-tar.153-3.jf15.tar
Check that your AP is not a Wave 2 AP (like 1800/2800/3800) – they use different images.
Before you TFTP or upgrade any access point, understanding the naming convention prevents critical errors. Cisco uses a structured nomenclature for its IOS (Internetwork Operating System) images. As of 2024-2025, the 15
Let’s dissect Ap3g2-k9w7-tar.153-3.jf15.tar:
tar : The file extension tells us this is a Tape Archive file. Unlike a standard IOS .bin file for routers, access points often require .tar files because they contain multiple components: the bootloader, the IOS image, and the web management interface files. | AP Series | Models | |-----------|--------| |
153-3.jf15 : This is the software version.
