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MattBurgos-4681 avatar image
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MattBurgos-4681 asked SunnyQi-MSFT commented

DNS entry on NIC Removed

We have a Windows 2016 Standard windows server running Exchange enterprise version 2016. We have had two instances where the DNS entry on the NIC card disappears. The behavior is, the "Use the following DNS server Address" is checked and the entries are blank. It appears something programmatically is removing the entered DNS addresses. It occurred on four separate DNS servers. As we know, when the above is checked you cannot leave that field blank if it is done interactively, therefore the programmatic option is possible.

We have Crowd strike installed and and reviewed their logs plus event viewer logs with nothing indicating cause.

If you have any suggestions as to why this might occur or have seen this in the past with an idea of the cause please share.

thank you

windows-dhcp-dns
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Hi @MattBurgos-4681 ,
Based on the research of this issue, this issue is more relevant to windows DNS. Here we focus more on general issues related to Exchange. So I change the tag of your post to windows-dhcp-dns, you will get more professional help.

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Hi,


Just want to confirm the current situations.


Please feel free to let us know if you need further assistance.


Best Regards,
Sunny

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1 Answer

SunnyQi-MSFT avatar image
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SunnyQi-MSFT answered

Hi,

Thanks for posting in Q&A platform.

Could you please provide related screenshots for us better understanding your issue?

Meanwhile, please help to provide ipconfig /all result for further troubleshooting.

Please kindly note that this is a public forum, everyone could access and view this thread, please remove private information that might leak your privacy.

Best Regards,
Sunny


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