|Yes, it go thru his computer. I saw that clearly on the connection map via Network and Sharing Center window. The path is Internet to his computer, from his computer to Internet Gateway device and from Internet Gateway device to my computer. When he is off, the path is directly from Internet to my computer.|
Do you have more information about using firewall blocking his computer name?
On Network and Sharing window, there is a possibility to turn off the option Network discovery via firewall but I don't know how. And I am not sure that works.
Based on Help window, as I understood, the only way is that he disable ICS (Internet Connection Sahring) but he don't want to do that. He didn't even want to talk to me. He enabled ICS without talking to me and by that act imposed me to be in his home network.
I just want to connect directly to Internet as the way it did before he came to house.