FIXED:: see notes at bottom
~~~~~~~~~~~~~~~~~~~~~~I am running a Sophos AP15 with UTM 9. After a UTM update today the wireless did not come back online. The light on the AP is solid orange (no blinking). The AP shows 'inactive' in the UTM console. I have validated the cabling to the switch with another device.
The Wireless Protection Log contains this info
Thank you for contacting the Sophos Community!
Yes AP15 support for the Flash tool has been added.
Thank you for updating your question with what actually fixed the issue.