Update:
I reset the wd tv live using the hidden button, set all windows shares to NOT require a username/password, gave full control to “everyone”, then restarted everything. I have 4 shared drives, all of which are using the same parameters. The WD TV Live Networking is set to auto and the test passes.
List of Drives:
D:\ - 3TB Seagate
E:\ - 2 TB WD
G:\ - 3TB WD
H:\ - 3TB External WD MyBook
The WD TV Live sees only “H” and “Users\Public”, which is automatically shared. The three other PC’s I have all see all of the shares and can read/write/delete with no issues. The Seagate Theater + also can play videos from any of the drives.