i use ado to connect to db2 database
my connection string is Provider=IBMDADB2.DB2COPY1;Persist Security Info=False;User ID=DB2ADMIN;Data Source=NEW_DB;Location=;

the database system is installed at host in my local network

when i try to connect i get
sql1097n the node name was not found in the node directory sql state = 42720

what is the priblem ?