i have a person on my team who converted some autonomoous air-ap1131ag-a-k9 to lwapp. I don't think they did it right.
what they did is , booted the ap ( at this point it was running in autonomous mode), set the ip to 192.168.1.200 and their laptop to 192.168.1.100 connected the laptop directly to the AP. (I have found out that these AP's were old AP's that previously had configs on them, ( static ips, a whole config) they came from another building , they were the ones that other lwapps replaced.)
they then went to the web gui of the AP , went to software upgrade and loaded the lwapp recovery image on the ap (c1130-rcvk9w8-tar.124-10b.JA3.tar). the software loaded fine, and converted the AP . and thats all they did
(I had mentioned that we should use the upgrade tool, but they didn't listen)
the aps got mounted , on the ceiling in the hospital, but when they went to turn them on, they didnt show up right on the controller , they kept joining and unjoining..
i think there is a problem with the SSC, i remember, something like the time had to be the same on the ap and on the WLC.
anyways, these could be older AP's before 2005 ( unknown to me) which would mean they dont hav MIC's and have SSC. and the ap is refusing them is my thought.
the WLC is setup to accept self signed certs.
these aps are now mounted on the ceilings , and when you do a show cdp nei, it has an ip address from when it was an autonomous ap.
Also, what is the best process you have found to convert Old autonomous 1131 AP's to lightweight mode?
the controller is running 4.2.176 WLC code. i currently don't have Access to WCS or a spare controller to use with the upgrade utility.
the controller is a 4404-100