Cannot NAS on local network with name, just ip address

Question

We have three machines peer-peer using Azure to control access to the local network resources.
One of the PCs cannot resolve the name \NAS but can resolve \{ipaddress}.
All user accounts can connect to the shares using the IP but not the name.
All other PCs resolve \NAS and can connect by name or IP.
Ping on that PC resolves the name \NAS to 196.xxx.xxx.xxx address outside the network.
Flushing DNS and changing DNS servers on this PC does not effect the problem.

Any assistance would be appreciate.