Hello,
You can try the following steps to configure and troubleshoot:
Check if there are other network configurations (such as VPNS, proxy servers, etc.) that might interfere with DNS resolution.
Ensure that no system services, such as DNS client services for Windows, are disabled or incorrectly configured, which could affect DNS resolution.
Ensure that firewalls and security software are not blocking access to 127.0.0.1:53.
Use the ipconfig /flushdns command to clear the DNS cache, and then try resolving the custom TLD again.
You can also consult Alfis' official documentation and community support forums to see if other users have encountered and resolved similar issues.