so I can confirm you that the
ipconfig /all gives the same value for DNS and DHCP server: 192.168.1.1 (under window)
this means that the reason why under linux it works better with 220.127.116.11 for the dns
it is still not clear ..at least to me.
But I am sure the speed was much much better when I changed those value....
Is there any other test I could do to check this ?
So, we can at least exclude it is something wrong with the graphic interface or browser?