XIF Files?
I'm not familiar with your product or software, but in my world I have to import .XIF files to make some LON devices wake up. I have also been through the nightmares of having the network image of one database reset the domain to it's default, but my interface requires another. I think that you already excluded a domain problem.
Are these devices "True LON" and registered with LonMark? They have helped me with third party devices on my networks before.
Π r2----No, pie are round, cornbread are squared.