Best I can offer is trying known good software media servers - again Asset and Playon (or whatever other PC installable meida server that is stable) - and migrate away from use of network shares. Since we all do have WD TV units and have spent the money then find good, non-techinical, easy enough ways to use them for entertainment value.

Universal Media Server is a media server capable of serving videos, audio and images to devices like PS3s, Xbox 360s, TVs, smart phones, Blu-ray players and more. It is free, regularly updated and has more features than any other media server, including paid media servers. Best Media Server Software Options - Tech Up Your Life Mar 30, 2020 Amazon.com: PlayOn Fire: Appstore for Android This app requires that you have PlayOn Media Server running on your PC. You can get PlayOn for free at www.playon.tv. With PlayOn you can easily watch local videos from your PC on your Fire TV. PlayOn will also aggregate all of your favorite streaming content from over 60 sites into one easy-to-use intuitive interface on your PC. PlayOn Online DVR And Video Streaming Software Review

Allow exception for Playon Media Server? | Wilders

Currently trying to run playon on my macbook pro and Jun 08, 2011 What Is the PlayOn Streaming DVR and Is It Legal?

Allow exception for Playon Media Server? | Wilders

PlayOn Online DVR And Video Streaming Software Review Aug 15, 2017 Currently trying to run playon on my macbook pro and Jun 08, 2011 What Is the PlayOn Streaming DVR and Is It Legal?