Issue with file sharing over VPN.

We had a call on the IT Support desk recently with regards to a VPN issue. TheVPN connects fine and you can ping devices from both sides. But you try to file share to other devices and it wont work

The issue is with the NIC on the client end letting SMB traffic Out, this was found using wireshark and monitoring the IP Packets that were leaving the NIC and entering the Firewall at the other end, and then monitoring traffic on both sides of the client NIC as the traffic getting from the NIC and tat the Firewall was the same.
After looking into why the NIC was not letting the SMB traffic through it was found to be the NETWORK CLIENT FOR MICROSOFT NETWORKS was not installed on the NIC. Once installed it instantly started to work.