We have been working on migrating our WINS server onto a windows 2003 server. After migrating there have been problems.
One of the users claimed that he could not access the shares on some of servers and also could not see all the computers on the network. That meant that his machine is not pointing to the new wins server.
Now, to troubleshoot we had three options. One, that if the wins is locally set up on his laptop. Second, VPN is pushing out wrong wins or third that his laptop is connected to different domain which points to old wins server.
He was asked to run the command prompt and using ipconfig /all while logged in to vpn and find the wins ip adreess. As expected it was pointing to the wrong wins server.
It came out some changes be made on the vpn 3000 concentrator. I used webvpn to make the relevant changes. Under configuration>user management>groups>internal users group>genaral I changed the primary wins address to the new wins server and secondary to the old one.

To confirm it I connected to the vpn and did ipconfig to find the wins getting pointed out to the new ip address.