I have a DHCP server that is delivering a range of 172.16.1.* to my clients. The DHCP server is also sending out information about my DNS and WINS servers. My first DNS and WINS server is 172.16.1.151 and second is 172.16.1.156. I have also listed a couple of external DNS servers to help resolve things as needed. I'm having the problem of my internal DNS serves not resolving an address that I know it has, then the external DNS servers respond with an external address to an internal link. What I mean by this is that I have an address like me.help.com that in resolving to 172.16.1.182 on the internal DNS server and on the external it's 184.108.40.206. My clients are getting the external address about once out of 20 calls. I have tried shutting down each of my DNS servers to see if one of my servers was locking up but no luck. Does anyone have any ideas what the problem could be that is causing my DNS servers not to respond?