Same setup here except all my music and such are on the NAS, no external hard drive connected. Runs fine except I’m having issues with deleting a previously added user who can still remotely see files. If it were me I would use official versions of the server and player, possibly the beta versions have bugs.
Used the betas because the Shield PMS turned off for no reason . No answers here. Checked thausends f posts no solution. My conclusion: DO NOT USE SHIIELD AS PMS - IT DOES NOT WORK.
It just happened again and now I (of course just temporarly) got PMS starting again by logging of and on again on the Shield.