We have one AP installed on a test site, the AP works well, but when we have power cuts, the AP will not come back online, until somebody goes and switches off and on that ap. its running on 12.1.1, we are afraid even to touch it as it then just does not come back online. Any ideas here ?
What are you using to power up the AP?
Are you experiencing 100% loss of power, or is it a brownout?
Early 450AP hardware had an issue when cold with soft restarts. That doesn't sound exactly like what you are seeing though. Later software versions worked around the issue. We have one early production model that used to require a physical power cycle if rebooted, it no longer has that issue.