DNS is not resolving for some reason. We are not able to resolve some domains on the internet. It is very irregular. Mostly any site can be resolved. For example, sun.com will return 'page cannot be displayed', but go to a site never entered before, like cbsnews.com and the site pops up no problem. The inaccessible sites get put into a search engine and return a list of sites from googe or live search. Clicking the site then gives the 'page cannot be displayed' error.
I can enter the IP of the site and the site is found.
We do not filter any sites or URLs. There is no web proxy server. We have an internet facing Win2003 DNS server pointing to our ISP (A&TT). We have 2 DNS servers on our LAN. Both have forwarding to our internet DNA server and AT&T's DNS servers.
NSLOOKUP can resolve some domains in question, but not others.
Any ideas would be helpful.
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