For the last couple weeks, my music library queue keeps getting cleared. I can go to music library songs and say play all and it will fill the queue. I usually have a sleep time set at night. Then at some point, I will go in the app to resume and the queue will be empty. And not because everything was played. The first time I noticed this, I went into settings and saw my network address was gone I went to the app on my pc  and it couldn’t connect to the address.  If keep trying with the same address, it eventually works. Nothing has changed in my router. 

another weird thing, I can’t access my iTunes imported play lists anymore if I try to play one, it says music not accessible, then if I try to go to artists or songs, those are no longer readable either. After maybe ½ hour I can access them again. But not the playlists. They can play fine directly from iTunes on my pc.