I only had one problem following an initial failure and that was because I had not started NAS on the B2 unit (Menu-Settings-Maintenance-Start NAS). After doing that it was networked in a few minutes. I used the File Explorer - This PC - Map Network method.
I don't think that I've seen that procedure mentioned in the messages so could it be contributing to the issue.
Now a question for myself. Having networked is it possible to amend and save the folder entries (eg. track and/or album titles) on the networked PC or does that still have to be done via the web UI.
Thanks and regards
Bryan