ok fixed it by myself reading this: http://www.sqlservercentral.com/Forums/Topic445734-283-3.aspx

Do not forget that if you have an instance you need to manually change the default value of SRV_Conn to SERVER\INSTANCE using MVS.

Also you need to change the LocalHost of ADONET.SQL_Overview and QASRV.SQL_Overview for SERVER\INSTANCE

Thank you,