Hi
We have a Windows 2012 server running AD and DNS. Something really weird happened, Simple and Recursive qurey failed. but nslookup test has no problem. Most of the time client are able to join domain and access internet by this DNS. Sometimes we have to set static DNS address on client. I have compared DNS configuration with a fine testing DNS server, it looks all right.
Next step I wanna try is deleting and recreating AD integrated Zone.
Any body met this problem before or what is your advice, thanks.
By the way we have an Exchange server 2013 in our domain.