IPv6 General Transmit Failure bug

In some instances if your network is like most and only uses IPv4 address you might run into a Windows-based bug that will only resolve by IPv6 address if IPv6 addressing is turned off in DNS/DHCP.

 

You will get a ‘General Transmit Failure Warning’ when you ping by host name or IPv4 address.

 

To resolve this you must do the following:

1.  open up command prompt in an elevated administrator level.

2. type the following: netsh int ipv6 isatap set state disabled
netsh int ipv6 6to4 set state disabled
netsh interface teredo set state disable (this one may not work depending upon your version of windows)
and then lastly perform netsh winsock reset

3.  reboot your PC/server

4.  login and you may need to re-add the network gateway on some rare occasions but you will be able to resolve IPv4 address and IPv4 reserved hostnames from DNS.