No, machine authentication requires a computer object in AD, and a successful directory user authentication to that machine. It is specifically enabled in the ISE AD connector on the advanced tab.  Machine certificates would be used for (typically) E...

It will start adjustments, but probably take several cycles to fully adjust.  The TPC algorythm runs every ten  minutes.  You can force it manually, but I would just let it work, after after a couple hours check the power levels, client coverage, and...

RRM operates at the controller level.  Prime maps are passive only and have no impact on RRM.  The maps are more of a visual/graphical tool for heatmaps and planning scenarios.

Scott has good advise for the infrastructure side, but don't forget the client aspect here.  Roaming is a client decision, if the issue only seems to affect some of your clients, then take a look at the affected client configuration and driver versio...