Our local domain matches our external domain. For this reason I have an A record called www that points to the IP address of our external domain. We recently changed the external host for our website. After the change over I replaced the old IP address with the new address. All of this was fairly smooth except now our local DNS server will only resolve the home page of the site. Any pages further in the structure are not found by the local DNS server. Browsers outside the local network find the pages correctly.