VPN (Browse to shares on server)

I have a customer one workstation can connect through VPN and browse to network shares with no problems.

The other workstation can establish the VPN connection but can not browse the network or connect to shares. This workstation was able to do this but stopped working about a week ago.

The settings are the same for both workstations, firewalls not an issue.

I can ping the fqn and get a reply however I can not ping \\server and get a response.

The ip address of the server responds to pings. I am thinking there must be an issue with DNS.

Anybody got any ideas?