Downgrading an LWAPP Cisco Access Point which was used with this Wirless Controll System can be very time consuming. Can. Doesn't need to. Cisco did some nice stuff to make life easier: An auto "downgrade" function. To use this you need to get following:
- Tftpd32 Server or similar tftp Server
- An autonomous IOS File for your Access Point (i.e. for the 1231 the file c1200-k9w7-tar.123-8.JEC.tar)
1. Setup your tftpserver and give it an ip out of the range 10.0.0.2 - 10.0.0.30 with the Subnetmask 255.0.0.0
2. Copy the IOS File to the tftpserver root, mostly called tftpboot in Linux
3. Rename the file from - for example c1200-k9w7-tar.123-8.JEC.tar to c1200-k9w7-tar.default
4. Plug in the Ethernet Port on your Access Point (direct Connection from PC to AP needs an Crossover Cable!), connect the AP also to the serial console if you want.
5. Press and hold the "Mode" Button on the AP and plug in power.
6. Wait until the orange blinking middle led turns solid red (ca. 30 sec) and then release the "Mode" Button
7. The AP will start downloading the firmware and reflash itself. DO NOT TURN IT OFF OR KILL THE CONNECTION!