Since the recent round of firmware updates for the EAP670, fast roaming has sort of stopped working. Devices sometimes get passed to a new AP, and while connected to the new AP, no longer have internet access. Sometimes they also don't get passed to the new AP and just lose internet access while retaining a LAN connect to the initial AP (able to access controller for example). Devices now spend significant time disconnected from the internet, sort of in limbo during a roaming event. Please fix ASAP.