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Server 2019 - DNS CNAME requests fails after clearing cache
Hi So we have a domain with 2012R2 DC servers all working fine with no DNS issues - DNS is AD integrated. I have built a new 2019 core DC server which seems to be working fine (no dcdiag issues). ...
hope this helps
https://learn.microsoft.com/en-us/troubleshoot/windows-server/networking/forwarded-dns-name-resolution-fails-for-dual-stacked-queries
Kind regards