Search the exact string (in quotes) on the vendor’s official support portal. If it’s a valid update, they will have an MD5/SHA256 checksum for verification.
me# software upgrade url tftp://192.168.1.100/AIRAP2800K9ME831500TAR
me# software upgrade save
me# reload
Before deploying this specific version, understand its sunset status (Cisco End-of-Life for 8.3 was 2020). You will miss:
| Feature | Supported? | | :--- | :--- | | 802.11ax (Wi-Fi 6) | No (requires 8.10+) | | WPA3 | No | | mDNS AP-wide | Limited (buggy) | | FlexConnect ACL scaling | Max 512 entries (8.5 offers 2048) | | Cisco DNA Center | Only basic telemetry | airap2800k9me831500tar upd
Security advisory: This version is vulnerable to CVE-2020-3427 (Cisco WLC DoS). If you use it, isolate the management VLAN or upgrade to 8.3.151.0 (the patched version).
The 2800 series shares a chipset with the 3800, but the firmware is not interchangeable. Search the exact string (in quotes) on the
| Supported Models | Unsupported | | :--- | :--- | | AIR-AP2802I-B-K9 | AIR-AP3800 series | | AIR-AP2802E-Z-K9 | AIR-AP1815 series | | AIR-AP2802I-B-K9C | AIR-AP1560 series | | Regulatory domains: Any (-A, -B, -C, -E, -T, -Z) | Any AP with 1GB RAM (2800 has 2GB) |
Critical Note: Applying this ME firmware to a standard 2800 AP that is currently joined to a physical WLC will break CAPWAP connectivity. The AP will reboot as a standalone controller. me# software upgrade url tftp://192
Cisco IOS-XE release 8.3 is a legacy but stable branch for the 2800 series. Version 8.3.150.0 is a maintenance release that primarily addressed:
Check your device model number: