Unable to resolve mapquest and aol only???

[neonrh]

Really stumped on this one. All of my computers are unable to browse to aol.com or mapquest.com. I've traced it down to DNS but am unsure what the problem is. All is configured fine and no errors in the event logs. I can resolve everything on my domain and also against the root servers. I've confirmed that no "." domain exists on my DNS servers and that the root servers are configured.

This all worked fine roughly 3 weeks ago and then stopped one day. All searches for viruses/spyware come up blank. If I run nslookup my DNS servers simply timeout. I confirmed that they have reverse lookup records, rechecked the configs, everything looks fine. I even cleared the dns cache on the clients and servers and rebooted. I am able to query external DNS servers with nslookup and resolve these domains, but setting them up as forwarders on the DNS servers makes no difference.

Any ideas?

 

[w33mhz]

Have you tried flushing your cahce on your DNS servers? Also verify your forwarding address, and make sure they are current and correct.

 

[neonrh]

I did try flushing the cache, thank you for the advice. I flushed it on the dns server and ran ipconfig /flushdns on the server and a client PC that points to the server for DNS.

PS: This is a duplicate post but I haven't figured out how to delete it yet. If you respond back, please respond back in the other post.