Hello Damien et al.,
I found out that more users seem to have this problem (or at least a similar one). See this topic Problem syncing big library ios app.
Meanwhile the problem still occurs at my end as well. I followed all suggestions, replaced the router, deleted the library, replaced hard disk had it build a library from scratch, made sure UPnP is enabled in all network components, made sure the firewall allowed incoming Audirvana. Still the Albums of the library of my media center (external harddisk connected MacMini 2014 and then to my Hegel dac/amplifier) does not load with Audirvana Remote neither on my iPad, nor on my iPhone. While before it loaded flawlessly.
What I find very hard to grasp is that in the same network,the identical library on another harddisk attached to another Mac (iMac 2017) does load on both my iPhone and my iPad!
I am very happy with the sound quality of Audirvana, so I really would like to stick to Audirvana. I have now spent days, if not weeks to figure out what could solve this. I would really appreciate your help in resolving this problem, particularly since this worked so well in the past (with same configuration). Of course I would be happy to provide additional information.
Looking forward to hearing from your team
regards,
Thijs