Windows DNS timeout issue

Question

Hi folks,

I have Two domain controller in our branch office Windows 2016 & Windows 2019. since last one month users are getting DNS timeout issue when they are browsing the internet. i have tried multiple troubleshooting but not found any root cause of the issue on the google.

When i point client machine to the public DNS internet is working very well without an issue but when i am pointing to AD it will start giving the error.

I have tried to changed DNS forwarder and using root hint server but it's not fixed.

here is the error when i am checking in the event viewer.

"name resolution for the name www.website.com timed out after none of the configured DNS servers responded."

Answer 1

Please run;

Dcdiag /v /c /d /e /s:%computername% >C:\dcdiag.log
repadmin /showrepl >C:\repl.txt
ipconfig /all > C:\dc1.txt
ipconfig /all > C:\dc2.txt
ipconfig /all > C:\dc3.txt
ipconfig /all > C:\problemworkstation.txt

then put unzipped text files up on OneDrive and share a link.

Answer 2

Hi Patrick,

Please check the logs

https://1drv.ms/u/s!AtXpTtPwiJysq3_olf2RVBpluE6O?e=1VnHy6

Answer 3

DC1 and DC2 files are from same server so fix that issue.
On AD2019 remove the 192.168.3.100 address and replace with server's own static address (192.168.3.4) plus loopback (127.0.0.1) then do ipconfig /flushdns, ipconfig /registerdns and restart the netlogon service.

Remove 8.8.8.8 from the DHCP server. All members must use domain DNS only and no others such as router or public DNS

Windows Time Service is not running on AD2016

AD2019 seems somewhat broken but limited information here so I'd check the system event log for more details.

If problems persist then put up a new set of files to look at.

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