Windows 10: The automatic failover of primary and secondary DNS has failed.

Dear experts and support team, Our server experienced a DNS failure last week. On March 2nd, all servers were unable to connect to the IP address of the DNS primary zone. Both ping and tracert to 192.168.240.11 failed, which caused the CRM server to be unable to obtain DNS information. However, the backup DNS 192.168.247.18 was accessible, but the server did not automatically switch to the backup DNS for resolution. BTW, We have already properly maintained the primary and backup DNS information. The CRM server is running Windows Server 2022 Datacenter, and the firewall has been turned off. We

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DNS Primary and secondary

Hello Fredrik Edström

Thank you for sharing your concerns here

I tried to query and reproduce your situation, but it seems that this question belongs to the scope of building a DNS server, so it may be beyond my personal ability and the support scope of the Microsoft Community. You can post this issue in the Microsoft Learn community about setting up primary DNS servers and secondary DNS servers. The community is composed of professional network experts and support personnel, They could always give a professional reply to this kind of scenario.

The following is a thread discussion on how primary and secondary DNS working in Windows 10:

Primary and Secondary dns working - Microsoft Q&A

Here is another thread discussion about DNS, Click here

You can click the following link and ask questions:

windows-10-network - Microsoft Q&A

Your patience and cooperation are highly appreciated.

Chandy|Microsoft Community Support Specialist

 

DNS Primary and secondary

Hi.

I'm using a same dns name local as a public one. Yes i know i could change it to something else but i don't wont that.

But my problem is that when i set my device's to use a secondary dns server to a use a a public dns server like 8.8.8.8

When trying to surf to my internal Web service it will point me to external to internet adresses. But i still want my primary dns to answer and point me right.

Why? Can anyone explain.

Br

Fredry.

 

Make Second Domain Controller Primary

I have 2 domain controllers, Primary is Windows Server 2012 and the secondary Domain Controller is Windows Server 2022. Primary successfully replicates to Secondary without issues and visa versa if I make changes in Secondary. I want to decommission the Primary DC, I followed the steps to transfer all 5 FSMO roles to secondary and now secondary is supposed to be Primary.

All servers see the secondary DC and it is listed as a DNS in ipconfig/all. When I shutdown the old 2012 DC, I Could not access any of the servers with domain name only IP. I tried flushing DNS but that did not help. I turned old server back on and was able to access my servers again but some servers had issues with RDP but are okay now.

Did I miss a step to make the 2022 server a Primary DC so old one can be decommissioned? do I have to make any changes on DNS Management?