Ap3g1-k9w7-tar.152-2.jb.tar «2K»

The ap3g1-k9w7-tar.152-2.jb.tar file is a specific Cisco IOS software image used for Autonomous (Standalone) mode on certain Cisco Aironet access points. Performance & Stability

✅ 15.2(2)JB supports 802.11n, WPA2, and basic 802.11ac wave 1 (partial, but 3600 series is mostly 11n). Ap3g1-k9w7-tar.152-2.jb.tar

1. File Identification

Full filename: Ap3g1-k9w7-tar.152-2.jb.tar
File type: TAR archive (.tar)
Primary use: Cisco IOS firmware / software image for an access point (AP)

Connect the AP’s console port and interrupt the boot sequence (press Esc during power-on).
Enter the AP’s bootloader mode (AP: prompt).
Set your PC/laptop IP to 10.0.0.1/24 and run a TFTP server containing the .tar file.
Issue the command: set IP_ADDR 10.0.0.2 set DEFAULT_ROUTER 10.0.0.1
Run: tar -xtract tftp://10.0.0.1/Ap3g1-k9w7-tar.152-2.jb.tar flash:
After extraction, type: boot

prompt), you must use a TFTP server. Many guides recommend renaming the file to ap3g1-k9w7-tar.default to trigger an automatic recovery boot when holding the button during power-on. The ap3g1-k9w7-tar

7. Important Notes / Caveats

Do not use this image for autonomous AP mode – k9w7 = lightweight only.
Downgrade restrictions – if upgrading from 15.3(x), you must use recovery mode to go back to 15.2(2)JB.
Digital signature – Cisco production images are signed; verify MD5/SHA before use.
End-of-Life status – AP3G1 and 15.2(2)JB are legacy. No security patches will be released.

Bootloader
Primary OS image
Web auth bundle
Partitioning info

1. File Breakdown: What the Name Means

Cisco’s image naming convention encodes critical information. Full filename: Ap3g1-k9w7-tar