Reply from ::1: time 1ms

vCenter server ping resolved to IPv6 instead of IPv4, even though after unbind IPv6 in network properties.

Pinging the FQDN gets a response "Reply from ::1: time 1ms" when IPv6 is disabled. I've checked DNS and there are no AAAA records and the HOSTS file is OK on the local machine.

Why is the system responding with "Reply from ::1: time 1ms" rather than from the IPv4 address? 

SOLUTION:

Download a microsoft patch for disabling a IPV6  from http://support.microsoft.com/kb/929852 .

Install the downloaded file.

After restart server will ping to IPv4 IP.

Thanks :).