Solved 9.2 OS Authentication in VB.NET gets password null error

Posted on 2003-10-21
Last Modified: 2013-12-11
I currently have 9.2 and am using OS Authentication. When I try to use it with VB.NET after referencing, and the connection string:
"user id=/;data" I get an ora-01005 null password error.

When I log into Toad, as user / and blank password, it works fine.

I tried "user id=/;password=;data" to no avail.

Any suggestions?

Question by:tf842
  • 4
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Expert Comment

ID: 9600431

 Do you have Oracle Client and ODP.NET installed in the same ORACLE_HOME or in separate? Make sure that you have the following line in your %ORACLE_HOME%\network\admin\SQLNET.ORA :


What version is Oracle client?

Author Comment

ID: 9600486
These are good questions. I have installed. How do I tell the oracle client is installed, and if it is, the version.

Expert Comment

ID: 9600567
Also, do you use connection pooling? I came across a bug on Metalink saying that when connection pooling is used with ODP theer might be a problem with proxy authentication. Try to disable it ( pooling=false  in your connect string).

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Accepted Solution

Pontis earned 250 total points
ID: 9600569
Check  HKEY_LOCAL_MACHINE\SOFTWARE\ORACLE and see how many HOMEx keys you have there. If you have more than one, make sure that you have same the parameter I specified above in each of them (you can see the path to each home in ...HOMEx\ORACLE_HOME value).

Author Comment

ID: 9600842
I realized the mistake. I was referencing instead of Oracle.dataacess.client in my code. I changed the refrences and associated propertis. Now it works.

I do not want to use connection pooling because it is kinda buggy.

Your suggestions were not the answer, but by following them, I stumbled onto it. I will ask the moderator about partial points, say 250.

How would you feel about this?


Expert Comment

ID: 9600864
All right, I see :)

 As for the points - I would appreciate partial... Thanks.

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