Originator allways the same

yes, i have this line
i forgot to write, that the k2 server is seperated, and i connect to it from the iis server.
i connect it with a connection string when i start a process with the API.
the line from the webconfig:
<add key="K2ConnectionString" value="[;];Authentication=Windows;Domain=domain name;User=yshamam;Password=....."/>

so i connect with this code :
string srv = ConfigurationSettings.AppSettings["PlanServer"];
string procSrv = ConfigurationSettings.AppSettings["ProcessName"];
Connection k2Con = new Connection();
string strCon = ConfigurationSettings.AppSettings["K2ConnectionString"];

k2Con.Open(srv,strCon);
and "yshamam" is the written originator all the time, even if i open the process from my computer...