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Windows DNS Wonky
Home › Forums › Admin IT Lounge › Windows DNS Wonky
Tagged: DNS, March 2021, windows server, Windows10
- This topic has 1 reply, 2 voices, and was last updated 6 days, 1 hour ago.
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April 5, 2021 at 1:44 pm #2355449
poppylochridge
AskWoody PlusFirst time poster, thanks, glad to be here. Ok, that’s out of the way.
We’re having some odd DNS issues in our office that could be latency, could be something else.
Environment: Small consulting group with a Windows AD domain, Windows 10 workstations (2004/20H2), DCs are 2012 R2 and 2019, both running DNS service. The older box also runs DHCP for our network.
Where we started was with websites that wouldn’t load. Open ebay, get a “server not found” error. Same with the login page for Office 365, LogMeIn, and NewEgg. Other sites seem to load ok, and sometimes if you hit refresh often enough, a site would finally load.
Tested with different browsers – Firefox is more reliable with its DNS over HTTPS, but not 100% reliable. Chrome is almost always the worst.
Putting an external DNS server in our network config improves things – the most it’s taken me was hitting refresh once to get a site to load that was failing.
Two things changed right before this started happening: our help desk installed March updates on both servers, then, a couple of days later, our ISP upgraded our internet speed and replaced our modem.
Q: Has anyone heard of or seen DNS resolution delays or errors from the March server 2012/20198 updates?
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April 6, 2021 at 12:01 am #2355568
Paul T
AskWoody MVPDNS is standard on all domain controllers.
External DNS (for the internet) is provided by your ISP, which you add to your internal DNS server in the forward lookup zones.Where / how did you add the external DNS?
Are you using a browser proxy server? In your browser settings (may be under Advanced) you can check the proxy.
Open a Command Prompt and type: nslookup askwoody.com
It will tell you what DNS you are using and return the address of askwoody. Do this for a site that is problematic.cheers, Paul
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