DNS request timed out. timeout was 2 seconds.

Question

_{Saturday, August 4, 2012 12:58 AM}

Hi,  we are running Windows Server 2008 R2 Enterprise on our domain controller / Windows DNS server.

Nslookup from Win 7 clients for Internet DNS names result in two timeouts, like so:

DNS request timed out.
    timeout was 2 seconds.
DNS request timed out.
    timeout was 2 seconds.

and then the query returns an answer. Query for the same name again does not time out; either because the record is in the client's resolver cache or the DNS server's cache.

We have two working (we think) forwarders in the DNS server, and the DNS server is configured to use Root Hints too, if Forwarders aren't there.

Any thoughts on why our name servers are slow to resolve Internet names?

I know this is a pretty broad question, but thanks for any suggestions!

Mike

All replies (4)

_{Tuesday, August 7, 2012 7:09 PM ✅Answered | 1 vote}

There was a stale Conditional Forwarder that was not answering- removing it from DNS fixed and now DNS querries for Internet host names are speedy again!

_{Tuesday, August 7, 2012 5:59 AM}

I’m moving this post to Network Infrastructure forum as it's mainly a DNS problem.

Thanks
Zhang

_{Tuesday, August 7, 2012 7:14 AM}

Hi Mike,

Similar Discussion:

http://social.technet.microsoft.com/Forums/en-US/winserverNIS/thread/a00525ab-c7c4-440a-8b45-01415bb1a0d8

Regards,
Rafic

If you found this post helpful, please give it a "Helpful" vote.
If it answered your question, remember to mark it as an "Answer".
This posting is provided "AS IS" with no warranties and confers no rights! Always test ANY suggestion in a test environment before implementing!

_{Tuesday, May 3, 2016 6:40 AM}

Thank you Mike.
My problem was the same and now it's gone.