This is a repeat of my question on Superuser. It was recommended I ask it here.
In my office, we have countless Windows workstations communicating with a server. We don't have a domain. All worstations and the server are in the same workgroup. All network connections are wired. We log into the server with a username and password different to that of the workstation.
One Windows XP workstation, just one in the office, takes up to 60 seconds to open a document on the server. If I save the document to the desktop and open it from there, it comes up instantly. If I use a similar workstation in the same room, the document opens from the server instantly.
Using Net Use \Server\Share makes no difference. We had a lot of DNS issues recently which were fixed by reconfiguring the server. It could very well be related to that, but how could one workstation not receive the benefits gained from a server configuration? I've confirmed the workstation is using the correct DHCP and DNS server. The network card has its Speed & Duplex set to Auto and reports at 1.0 Gbps. I tried plugging into a different port with a different cable (known to work) and there was no difference. I disabled AVG and Microsoft Office Upload Center.
I am at a complete loss as to what the issue could be. Do you have any other ideas?