TunnelBlick and OpenVPN 2.4.3 using OpenSSL 1.0.21: cannot write to mapped network drive

[jhle...@gmail.com]

Hello,

I'm supporting a client who uses a Macbook to connect to an OpenVPN server that runs on Windows Server 2012 R2.  I recently upgraded the server to OpenVPN 2.4.3.  Two Windows 20 machines using OpenVPN clients can connect, map a network drive on the server, and write/edit files on that drive.  However, the user on OSX cannot write, but he can download locally.  Viewing info on the folders shows a permission of "you can only read".  He was able to write files without a problem before the server upgrade.

I think this is somehow related to the user in OSX not translating properly to the mapped drive on Windows (or something else with permissions), but I don't know enough about OSX to know where to begin troubleshooting.  The Macbook is running Tunnelblick 3.7.1b (build 4813) and he maps the network drive using the server's IP, which ends up being:  smb://10.8.0.1/<share name>

Thanks in advance for any assistance/thoughts.