Have a friend with a Mac that keeps crashing running a program called H&H color lab. We do not service Mac systems, and they knew this when they bought it to start a photography business. H&H is blaming the Synology NAS where the files are stored for the problem. Synology has the system logs and waiting for them to respond. We support Synology and found nothing wrong with the configuration for use with Windows computers. Again, we have no Mac people and have no idea if something additional is required. It has been working for several months with no issues until yesterday. On the Mac no other programs hang (not responding) like H&H color lab. Being a child hood friend, I want to help in any way I can. Remember I have almost zero knowledge of Mac OS, and there is no companies with 100 miles that support it.