When visual studio 2019 is installed, vs installer cannot download files. The progress bar is 0. It shows the solutions to network problems

In addition, my agreement is ipv6, From the blogger dns The address is 4 So it doesn't work , Just go and search for two 6 The agreement is OK

choice “ Use the following DNS Server address (E)”, stay “ The preferred DNS The server ” Input in 240c::6666, Then click OK ;

*（ Updated ） About Visual Studio 2019 When installing VS installer Unable to download file , The progress bar is 0, Show solutions to network problems _ evening breeze (●•σ ) The blog of -CSDN Blog _vs2019 The download progress bar does not move
How to configure ipv6 Of dns - You know
 

It is available in China ipv6 DNS Server address ？ - You know