Why does Internet Explorer suddenly lose its DNS connection?

I have two DNS servers: the preferred one serves internet names and the second one is for the internal network. The preferred one is supposed to be replicating and caching entries from our ISP. Every once in a while, a client running IE 6.0 SP1 (on 2000 clients, it's SP2 on XP) will start throwing DNS errors such as "Cannot load the search page".

The problem seems to be between IE and DNS because nslookup does connect to the DNS server and does give correct lookup info. When I copy and paste the number (which amounts to doing the DNS lookup manually for IE) a page does load, except for things in the HTML which ref objects by a symbolic DNS name (again, the DNS lookup still fails).

I am thinking about setting up the internal DNS server to replicate from the ISP's server, but the problem seems to be IE.

Why does Internet Explorer suddenly lose its DNS connection?windows media player 10

Multiple network adapters can be problematic

Extraneous network adapters and drivers which are not connected, are inoperative or unnecessary should be removed from your system. These can cause unpredictable network behavior.

*

AOL and other proprietary adapters may work fine if you have the service and are actively using it. If, however you are not using the adapter, it may be configured improperly and has been known to cause connectivity issues.

*

NDSWAN and other VPN adapters can be problematic if they are not in use. PPPOE (Point to Point Protocol Over Ethernet) may be used in some DSL or Cable connections; if it is not used, it may cause problems with the connection, and should be removed.

*

Certain brands of ethernet cards are known to have problems with their drivers and the way they address memory. Please refer to our compatible network card list for further information.

*

Client for Netware Networks and IPX/SPX are protocols used in corporate Novell Networks. If this protocol is not needed, it should be removed.

*

NETBEUI is a Microsoft Protocol that, as above, may be in use in a corporate network. If it is not in use, it is better to remove this adapter

Why does Internet Explorer suddenly lose its DNS connection?microsoft net internet explorer

i'm having the sameproblem,anyone help please..
What version of IE do you have? Do you follow up on windows and IE updates? There are security updates that you need to keep up with for IE.

Go to http://www.microsoft.com and click on Microsoft Updates and make sure your Windows is up to date along with your IE.
How do you know it is with IE? I seriously doubt it is. It sounds like a problem somewhere between you and the web-server, which has multiple failure points. It could be as low-level as Wins-Resolution and as High-Level and a network collision or lack of response from a server.
if your running windows xp try mozalla firefox, I think it works much better than explorer.