Q: Why can't I delete the Access Points group from my Master Console even when there are no devices in it?
Since the concept of a Default Group doesn't really apply to Master Console --since devices can't be added to MC-- we removed the Default Group setting from the AMP Setup page. That left an existing Access Points group in a kind of limbo --set as the Default Group in the database but without any way of changing that from the GUI. You can delete the group from the database:
# dbc "delete from ap_group where name='Access Points';"