I've got a DNS issue that I don't understand. Internet browsing from the local network is very slow. It may take a minute or more to load a web page.
There's one server on site and it is a WS2003 DC. If I run an nslookup request on the server itself it times out. If I then run the same request again it returns the correct result straight away.
Can someone give me troubleshooting tips?
Thanks in advance.