See if this link helps you
Please come back if you have any doubts.
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What i understand you want to convert from Lightweight mode to autonomous mode ... no reverse of it..
Link to download tftp server
Link to download AP image you to upload:
Here is the step that you can try :-
LWAPP to autonomus AP converstion steps
Here is a example steps for you:
Step 1 The PC you intend to use must be configured with a static IP address in the range of 10.0.0.2 to 10.0.0.30.
Step 2 Make sure that the PC contains the access point image file (such as c1100-k9w7-tar.122-15.JA.tar for an 1100 series access point or c1200-k9w7-tar.122-15.JA.tar for a 1200 series access point) in the TFTP server folder and that the TFTP server is activated.
Step 3 Rename the access point image file in the TFTP server folder to c1100-k9w7-tar.default for an 1100 series access point or c1200-k9w7-tar.default for a 1200 series access point.
Step 4 Connect the PC to the access point using a Category 5 (CAT5) Ethernet cable.
Step 5 Disconnect power (the power jack for external power or the Ethernet cable for in-line power) from the access point.
Step 6 Press and hold the MODE button while you reconnect power to the access point.
Step 7 Hold the MODE button until the status LED turns red (approximately 20 to 30 seconds), and release the MODE button.
Step 8 Wait until the access point reboots as indicated by all LEDs turning green followed by the Status LED blinking green.
Step 9 After the access point reboots, you must reconfigure the access point by using the Web-browser interface or the CLI.
From this doc;
Hope this helps! ..
Pls rate if it resolve ur issue so that others can also benefit from these steps.
I try all this steps but the AP is juts rebooting and rebooting it never stops.
I believe all firmware is corrupted, is any other way we can erase everything and start over again?
Hello Rob, I try to install the image c1200-k9w7-tar.123-8.JEA3.tar, I change the name to c1200-k9w7-tar.default
But still the AP is jut rebooting and rebooting, stops for 30 seconds and reboot again, I use TFTP software setting the IP on my laptop to 10.0.0.2.
Rob I got it, it was a setting on the TFTP program under the DHCP Server tab, this are the settings I use
IP poll Starting address 10.0.0.1
Size of pool 2 (Note) If you set more of 2 it may not pick the right IP for your laptop that was may case
Boot file ---
WINS/DNS server 0.0.0.0
Default Router 10.0.0.1
My laptop was set with static IP of 10.0.0.1 Mask 255.255.255.0
Thak you for all your help.
I recently helped a client who had incorrectly purchased a AIR-LAP-1252AG-A-K9 LWAP native AP. Of course the AP had never been autonomous before. This is the fancy 802.11n model with 6 antenna's for mimo.
Here is what i did;
like the original poster's steps...
-I had my laptop with tftp server directly connected to the AP with a crossover cable
-my laptop configured with the ip 10.0.0.2 (the AP will use 10.0.0.1 when it reboots)
-hold the AP's reset button for a while. you may have to do this several times... the ap will go into a mode where it looks for any tftp server 255.255.255.255.
-your tftp-server needs to have the autonomous code named EXACTLY as the AP is looking for it... even if you download xyz.tar from cisco's site, rename appropriately, in this instance i renamed the .tar to c1250-k9w7-tar.default
I have attached the log from my console software.