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Cisco 800 Series Aironet AP fix

Issue converting a 881W from LWAPP to Autonomous mode

We finally figured this out and thought it would be a great thing to share.

First of all in the AP bootloader:

ap: ether_init
Initializing ethernet port 0...

ap: tftp_init
tftp_init success: You can now use tftp file system!

ap: flash_init

Then check the IP address of the AP:

ap: set
DEFAULT_ROUTER=10.0.0.1
IP_ADDR=10.0.0.1
NETMASK=255.255.255.224

Then configured your PC on the same subnet and on the router and configured the switchport F0 to be on the same subnet as the AP:

interface FastEthernet0
switchport access vlan 2
!
interface wlan-ap0
description Service module interface to manage the embedded AP
ip unnumbered Vlan2
!
interface Wlan-GigabitEthernet0
description Internal switch interface connecting to the embedded AP
switchport access vlan 2
!
interface Vlan2
ip address 10.0.0.2 255.255.255.224
!

Then in the bootloader:

ap: copy tftp://10.0.0.5/ap801-k9w7-tar.124-21a.JY.tar flash:/ap801-k9w7-tar.124-21a.JY.tar

where 10.0.0.5 is your PC IP where you have an TFTP server.

Once you have downloaded it you have to extract the image (Verify to download the right one. Not the LWAPP one)

ap: tar -xtract flash:/ap801-k9w7-tar.124-21a.JY.tar flash:/

It can take a while.

Once it is extracted just type:

ap: boot


Then you should be fine.