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Hi, <br />
<br />
We have a strange issue in our DNS which I hope somone can advice. <br />
<br />
There is a conditional forwarder we have setup when we merge with another company. &nbsp;That forwarder has been working nice for weeks until today. &nbsp;For some reason, the domain we created disappears. &nbsp;We recreated, but it some of the records missing again. &nbsp;<br />
<br />
The DNS service is running on a WIN2012 DC. &nbsp;<br />
<br />
Please advice what I should check. <br />
<br />
Thanks.<br />
<a href="https://filedb.experts-exchange.com/incoming/2017/01_w04/1140315/dnsissue.png" target="_blank" class="file-inline" title="DNS issue (16 KB)"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path d="M67.508 468.467c-58.005-58.013-58.016-151.92 0-209.943l225.011-225.04c44.643-44.645 117.279-44.645 161.92 0 44.743 44.749 44.753 117.186 0 161.944l-189.465 189.49c-31.41 31.413-82.518 31.412-113.926.001-31.479-31.482-31.49-82.453 0-113.944L311.51 110.491c4.687-4.687 12.286-4.687 16.972 0l16.967 16.971c4.685 4.686 4.685 12.283 0 16.969L184.983 304.917c-12.724 12.724-12.73 33.328 0 46.058 12.696 12.697 33.356 12.699 46.054-.001l189.465-189.489c25.987-25.989 25.994-68.06.001-94.056-25.931-25.934-68.119-25.932-94.049 0l-225.01 225.039c-39.249 39.252-39.258 102.795-.001 142.057 39.285 39.29 102.885 39.287 142.162-.028A739446.174 739446.174 0 0 1 439.497 238.49c4.686-4.687 12.282-4.684 16.969.004l16.967 16.971c4.685 4.686 4.689 12.279.004 16.965a755654.128 755654.128 0 0 0-195.881 195.996c-58.034 58.092-152.004 58.093-210.048.041z"/></svg>dnsissue.png</a>
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dnsissue.png

Hi, 

We have a strange issue in our DNS which I hope somone can advice. 

There is a conditional forwarder we have setup when we merge with another company.  That forwarder has been working nice for weeks until today.  For some reason, the domain we created disappears.  We recreated, but it some of the records missing again.  

The DNS service is running on a WIN2012 DC.  

Please advice what I should check. 

Thanks.

DNS forwarder or DNS forwarder records missing.

The Domain Name System (DNS) is a hierarchical, globally distributed system responsible for associating the name of a computer, service or other resource into an IP address for connecting to the Internet or a private network. Most prominently, it translates domain names to the numerical IP addresses needed for the purpose of computer services and devices worldwide.

Windows Server 2012 is the server version of Windows 8 and the successor to Windows Server 2008 R2. Windows Server 2012 is the first version of Windows Server to have no support for Itanium-based computers since Windows NT 4.0. Windows Server 2012, now in its second release (Windows Server 2012 Release 2) includes Foundation, Essentials, Standard and Datacenter, and does not support IA-32 or IA-64 processors.