Question : Major DNS PROBLEM! NEED HELP ASAP!!

i recented became infected with the conflicker.b varient and it destroyed my systems. I have rebuilt my servers and all online desktop from scratch and reinstalled active directory making a new domain.  At first everything was working ok but now i am having problems across the network with "dns" error when attempting to go to websites.

The problems and intermitent and across all account and computers. The website may be working correctly at first and then stop working giving the the normal windows "cannot find server or dns error" when i do a nslookup from that machine it resolves the website/ip address even though ie cannot connect.. I have checked my setting and i cannot seem to find any errors, when i do the tests on the server both the standard and recursive, they both pass. i have cleared all dns cache on both servers and workstations and still no fix. I even tried to unistall and reinstall dns on both servers. i have my dns forwad to my isp dns servers(something i never had to do before) and still get the errors.

my dns servers are 10.12.81.200 and 10.12.81.202, my isp servers are 68.87.64.146 and 68.87.95.174.

i even added my isp dns servers to the worksations and i still get the errors.

how can i fix this?

Answer : Major DNS PROBLEM! NEED HELP ASAP!!

It doesn't really suggest a problem with DNS, if Ping gives you the line like this:

Pinging www-real.wa1.b.yahoo.com [69.147.76.15] with 32 bytes of data:

Then DNS is done, even if the request times out after that.

That means you need to look into network paths, possible firewalls, etc etc. Are you able to monitor network traffic on your firewall?

Chris