So to "fix" that SERVFAIL, you would need to create a RDNS entry for the complete IPV6 address. (I'm not sure whether one can create a RDNS entry for a whole prefix, but if you can't, then there really is no point in doing it since because of privacy extensions your address will change regularly)
How To Fix ‘Microsoft Teredo Tunneling Adapter not working Jan 18, 2018 Fix: IPv6 No Internet Access [12 Methods] - Tapvity Sep 02, 2019 How to FIX IPV6 No Network Access - WORKS EVERY TIME Sep 07, 2018 How to Enable IPv6 on Windows 10 | 2 Methods | Itechguides.com
How to Disable IPv6 – OpenDNS
How to fix IPv6 No Internet Access on Windows 10 - 14UM.NET Fix IPv6 No Internet Access. Assuming your network does support IPv6, and it’s enabled, and you’ve been able to get IPv6 connectivity on one other device on the network, follow these steps to fix the No Internet Access problem. 1. Reset Winsock. Open Command Prompt with admin rights; Run the following command. netsh winsock reset catalog Fix: 'IPv6 Connectivity- No network access' error in
Presentation Description. If you are in the situation IPV6 connectivity no network access on your computer, at that time you can use our simple instructions to fix the issues manually.
To automatically disable or re-enable IPv6 or its components, follow these steps: Click the Download button for the procedure that you want to run. Click Run or Open in the File Download dialog box. Follow the steps in the easy fix wizard. How To Fix ‘Microsoft Teredo Tunneling Adapter not working Jan 18, 2018 Fix: IPv6 No Internet Access [12 Methods] - Tapvity Sep 02, 2019