Ap3g3-k9w8-tar.153-3.jpo.tar Site

When an AP loads this image, the sequence is:

If the WLC runs a version older than the minimum required in the info file, the AP will refuse to join and cycle back to discovery.

The AP expects the .tar file to be at the root of your TFTP server. But the AP also looks for a directory named ap3g3-k9w8-tar.153-3.jpo after extraction. Ensure your TFTP server has write permissions.

Before proceeding, verify your hardware. Loading ap3g3-k9w8-tar.153-3.jpo.tar onto an unsupported AP will result in a corrupted flash and a "boot loop." Ap3g3-k9w8-tar.153-3.jpo.tar

Supported access points:

Not supported:

Note on 802.11ac: While the 3700 series supports Wave 1 802.11ac, version 15.3(3) was released before many 11ac optimizations. You will not get Wave 2 features (MU-MIMO, 160MHz channels). When an AP loads this image, the sequence is:

The 15.3(3)JPO release is considered legacy. As of 2025, Cisco has released no security patches for this branch in over four years. That said, the 2600 series does not support WPA3 or 802.11ax (Wi-Fi 6). If you are running this firmware:

If this file is found on a seized device or network share, it indicates:

Even with the correct file, issues arise. Here are the top three problems and their solutions: If the WLC runs a version older than

Problem 1: "AP Image Download Failed – File not found."

Problem 2: AP reboots every 5 minutes with "Image Mismatch."

Problem 3: The tar file cannot be extracted on Windows.