Read the title that is pretty much how we experience it currently. All new users who choose a new device get Android 4.1 and the native email client on those phones does not get along with the security settings Exchange asks for. The only thing we have activated is the ability to wipe a device remotely and that we ask the user to set a pin number.
Older devices with Android 2.2 for example have no problems. Those are all HTC wildfire devices.
We did a log export on a device which could not setup activesync and did see a mentioning of Foldersetup policy going wrong but got no further with that.
So, has anyone else been able to succesfully link a jellybean phone to exchange 2010 via activesync??