I am having a DNS issue with my laptops. I have 4 local subnets that my laptop users will periodically connect to during the course of the day. When they connect to a new subnet, they get a new IP and then DNS is updated. So for one laptop, DNS could show 4 separate IP addresses. This causes problems with some applications, for example, our ERP system will work just fine in their original subnet (either wireless or wired), but when they go to another subnet, they get errors saying the server is not available. I'm guessing because it is going after the wrong DNS entry for the client. Any suggestions as to how to configure DHCP and DNS to minimize this problem?
I am running a Win2k3 AD with DNS active directory enabled and all the clients are XP Pro.