Hello I can't seem to get syntax correct for connecting thru a Proxy using username and password.

user : test1/test1
proxy : uwg_proxy/proxypass

alter user test1
grant connect through uwg_proxy
authenticated using password;

SQL> connect test1/test1@xxxx;
Connected.

SQL> connect uwg_proxy/proxypass@xxxx;
Connected.

SQL> connect uwg_proxy[test1]/proxypass@xxxx;
ERROR:
ORA-28150: proxy not authorized to connect as client


Warning: You are no longer connected to ORACLE.

SQL> connect uwg_proxy[test1]/test1@xxxx;
ERROR:
ORA-01017: invalid username/password; logon denied

please help.

Thanks,
Bill