This is a frustrating topic. This is something Solarwinds has been promising for 5+ years and technically "support" exists but it only kinda half works. Certain models of AP's get detected as an AP and show on the wireless dashboard, and some don't. Not really sure why it only works on certain ones because they all use the same MIB and our custom pollers work on all of them. It's something that would probably take them a couple of hours to fix but for whatever reason it's not a priority.