See a related article: How to Fix the IPv6 Connectivity No Network Access Error Microsoft Teredo Tunneling Adapter Not Working As a translator, it translates IPv4 to IPv6 and vice-versa. To get rid of this situation, Teredo Tunneling appears. But with IPv6 added in, the network connection problem appears. When a computer is only using IPV4, the Internet connection runs smoothly. Tip: To learn some details, refer to this post - Here Is Some Information About IPv4 VS IPv6 Addresses. It brings an uncountable number of addresses. However, as there are more and more persons and less and less available IPv4 addresses, IPv6, Internet Protocol Version 6 (with the format similar to 2001:DB8:0:0:8:0:417A) appears. It is an identity that can be used to communicate with the world over the Internet. IPv4 (with the format similar to 192.168.1.1), an IP protocol, assigns a computer with a unique address. This adapter can act as a translator to interpret these two different IP address schemas, making you access the website you want no matter your PC has an IPv4 or IPv6 address. In a word, it is software that enables your PC to work with both IPv4 and IPv6. What Is Microsoft Teredo Tunneling Adapter Just try these methods below based on your situation. What is Microsoft Teredo Tunneling Adapter? Is it not working on your Windows 10 PC? Now, you can learn much information about this adapter driver and know how to fix this problem in 3 cases from this post written by MiniTool.

Teredo tunneling adapter driver missing