Thank you for this thread.
Unfortunately, my old NAS needs SMB v1...
thats what i found when i googled around to see what SMBv1 is used for, and how to see if your network is currently using it or not...
i found some posts from users using QNAP NAS, and they said to disable (on NAS or Computer) SMBv2+ and enable SMBv1, then it allowed it to work properly
crappy situation for those users with NAS like that