@dbdan22 Save a few $ and just buy some clips? Supplied bolts might be too long, but you could find an alternate fastener, like aluminum or plastic pop rivets...

@dbdan22 While you are googling stuff...I'd try "U-PRO-MP", it has a nifty clip system that I'm sure would work just fine with the TPlink plastic mounting plate

@dbdan22 This is for an EAP650...typical of their latest generation ceiling APs. I'm pretty sure you can find some combination of holes in their adapter plate that match at least 2 on the Cisco...

@dbdan22 I would have no shame buying a box of those $5 Aironet drop ceiling adapters and modifying them for whatever brand of AP I had. I would however, have a lot of shame buying the matching Cisco...

@Zack_Amin I have seen this issue before trying to move between hardware and software controllers. My usual work around is to set up the desired device as a new controller and then with both...

@Nasser_Alrajeh sorry about the answer, there is no good reason not to enable mesh on these devices but they don't.