The DNS server seems to be working fine. The likely bug is that your system is asking it for an IPV6 address even though your system doesn't have IPV6 connectivity. An IP address can also be unreachable from your system if some ISP in between has a broken router.

Sep 02, 2015 How to check if DNS is functioning | Howtoforge - Linux Dec 12, 2005 How do I check if my DDNS address is working correctly

Mar 18, 2019

Under Options, select the Show command check box.; Under Nameservers, select the server that you want to use for the DNS query.You can use the default name server, or select a specific DNS server, like OpenDNS or Google. Click Dig.The page displays the results from dig, … 10 Ways to Troubleshoot DNS Resolution Issues Jun 17, 2009 My domain is unavailable on the internet - Amazon® Route 53

Off: Deselect the Enable DNS over HTTPS checkbox. Click OK to save your changes and close the window. Switching providers. Click the menu button and select Options. Preferences. Scroll down to Network Settings and click the Settings… button. Click the Use Provider drop-down under Enable DNS over HTTPS to select a provider.

How DNS Aging and Scavenging Works - TechNet Articles A single DNS server with DNS scavenging enabled on it is enough to have the DNS scavenging properly done. Configuring DNS scavenging on many servers is usually not recommended as it makes troubleshooting DNS scavenging related issues (Example: Removal of legitimate DNS … How to use Nslookup to check DNS Records Use NSLookup to verify the local DNS server is working correctly. Use the command to verify DNS records on local servers. If you need examples see the previous section. Step #4 Use DCDiag to check the AD Health. If your having issues internally you will want to check the Health of your Active Directory environment. Since DNS and AD are very How To Use nslookup Command & Dig Command For DNS Check …