Hi Bruce,
I’ve shifted your posts to a new thread in Support so that this can get individual attention.
Can you provide details of your system as per this post ? It would also assist if you can provide such detail as you can about the network, because failing to find the library sounds like a network issue.
Build 99 was recently publicly released but Roon upgrades only occur when a user says yes to an upgrade notification. Are you able to get Roon into a state where you can see what version you are running (Settings/About) ?
Let’s drop some flags for @mike and @vova to investigate further.