DNS resolution problem

Users are getting a lot of delays loading web pages or page not found errors drilling down within websites. Using only the ISP DNS addresses, the page load is very fast. Routing web traffic from internal systems using the local DNS have the page load problem. I added the ISP DNS addresses in the third and fourth slots in the scope option for Name Servers and while browsing improved marginally, several internal systems were unable to resolve local network resources, inspite of a secondary DNS server and WINS. Removing the external DNS addresses resolved the internal resolution issue but the slow browsing continues. These are MS DHCP and DNS addresses.
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Check if your ISP DNS are configured as forwarders in the DNS MMC...

Better remove the ISP DNS entries from the DHCP and just have the local addresses. Also, the primary server's DNS should be local host address ( as the primary DNS. What you need to do, to resplve the external addresses is, put the ISP's addresses as forwarders. To do this: Open DNS manager, Right click on the server name and open Properties. Open Forwarders tab -> click on Edit... and add your ISO's DNS there...

That way you will not have problems in opening internal sites as well as external sites.

Darius GhassemCommented:
You need to setup DNS forwarders to point to ISP DNS servers.


Make sure you only point to internal DNS servers in TCP\IP properties
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Elessar1Author Commented:
In the forwarders tab of the server name only the other internal DNS address is there. Are you saying the ISP DNS servers need to be added to that list?
Darius GhassemCommented:
DNS Forwarders shouldn't have other internal DNS servers you are making your traffic higher by doing this you can do this but one of  the forwarding DNS server needs to be forwarding out to  the ISP DNS server.

My recommendation is to have all of your DNS servers forwarding to your ISP DNS servers

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Remove all the internal DNS addresses from the forwarder tab and add the external DNS addresses. When you put the external IP, it should resolve it and show you the server name right away.

Let me know if there are more questions.

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