I have a Mango version 3.5.6 It is connected to a DDC board thru Bacnet I/P.. There are several DDC boards on this system. When I save the datasource and send out Whois I can see them all. When I recheck the next day, most of the DDC boards and their points are no longer there? If I re save the datasource, then all of the DDC boards and their points show up again.. I have only 10 points saved as data points.