user6752145 wrote:Have you contacted your DBA so he can look at server side traces?
I have a similar problem that someone reported.
I have an application using a Web Service that connects to an Oracle database using. Net Oracle Data Provider for Visual Studio 2005. The Web service I've installed on a Windows 2000 Server. When I perform simple queries does not show the error, but when I do CRUD operations on the database or run some complex queries shows the error "ORA-12571: TNS: packet writer failure". Not so when using the Web Service in my station. Please, I need some assistance. Thanks in advance.