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ASPNET login failure in Visual Studio / MDSE environment

Posted on 2004-04-11
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Last Modified: 2009-07-29
Based on my searches, this problem happens a lot. I am a rookie and have attempted these solution and have gotten nowhere.

 I am working (just starting) in a Visual Studio .NET environment using VB. Trying to get the ASP.NET Web App. Walkthrough to work. I can see that I am able to access the “pubs” database through via the via the VS/VB wizards. But at run time it doesn’t work.

Here’s part of the text of the message:
...
Login failed for user 'CSCHERL-D4500\ASPNET'.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.  
Exception Details: System.Data.SqlClient.SqlException: Login failed for user 'CSCHERL-D4500\ASPNET'.  Source Error:
...

Here is what I have tried with no change in the message.

1.      Using the WIN XP Control panel I created a ASPNET admin user account with no password. I didn’t think that it would work as I was not setting this user up in the SQL Server.

2.      I found what I thought was the solution here:
http://www.experts-exchange.com/Programming/Programming_Languages/Dot_Net/Q_20728747.html?query=Login+failed+for+user+ASPNET+&searchType=all

I tried building the .bat file and making the appropriate substitution to add the user to the MSDE SQL Server. Here’s what I tried

cd "C:\Program Files\Microsoft SQL Server\80\Tools\Binn"  
osql -E -S CSCHERL-D4500\MSSQLServer r -Q "sp_grantlogin 'CSCHERL-D4500\ASPNET'"
osql -E -S CSCHERL-D4500\MSSQLServer -d pubs-Q "sp_grantdbaccess 'CSCHERL-D4500\ASPNET'"
osql -E -S CSCHERL-D4500\MSSQLServer -d pubs -Q "sp_addrolemember 'db_owner', 'CSCHERL-D4500\ASPNET'
pause


Here’s what I get:
...
C:\Program Files\Microsoft SQL Server\80\Tools\Binn>osql -E -S CSCHERL-D4500\MSSQLServer -Q "sp_grantlogin 'CSCHERL-D4500\ASPNET'"  
[DBMSLPCN]Invalid connection.
[DBMSLPCN]ConnectionOpen (ParseConnectParams()).
...

It seems pretty clear that I have a bad connection. I suspect that my “instance” of the SQLServer is improperly specified. The SQL Service Manager running in the task tray says the following:

Server:CSCHERL-D4500
Services:SQL Server
At the bottom of the box [Running - \\CSCHERL-D4500 – MSSQLServer]

Am I even close to solving this problem???

Is there a possible problem in the “Component Designer generated code”???

What do I need to do and how (very clearly for this dummy) do I do it?

Help!!!!

ChuckS
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Question by:blindrookie
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5 Comments
 
LVL 9

Expert Comment

by:glsac
ID: 10801949
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Author Comment

by:blindrookie
ID: 10805595
I certainly do appreciate the references .... however I can find nothing that tells me how to:
1. create userids for virtual servers such as IIS & SQL
2. assign permissions etc.
3. exactly where in the web.config files things need to be placed
As I mentioned before, I am not certain that I ma on the right track.
0
 
LVL 9

Accepted Solution

by:
glsac earned 125 total points
ID: 10806088
<system.web>
    <identity impersonate="true" />
</system.web>

In short this is what the articles say...put that in your web.config and tell me if it works...you should not have to add ASPNET process to sql server.

-Joe
0
 

Author Comment

by:blindrookie
ID: 10809043
After posting my comments, I found modifaction to the connection string on MS Knowledge Base which was referenced by one of your articles.
I changed this code which was generated by VS:
...
       Me.SqlConnection1.ConnectionString = "workstation id=""CSCHERL-D4500"";packet size=4096;integrated security=SSPI;data sou" & _
        "rce=""cscherl-d4500"";persist security info=False;initial catalog=pubs"
...
to this:
...
        'Me.SqlConnection1.ConnectionString = "workstation id=""CSCHERL-D4500"";packet size=4096;integrated security=SSPI;data sou" & _
        '"rce=""cscherl-d4500"";persist security info=False;initial catalog=pubs;server=""CSCHERL-D4500"";uid=sa"
...
This worked and I was able to see the database display.
When I got your <identity impersonate>, I backed out the above change to see if it would also work prior to implementing your fix. The now works with the old code!!!!!!!
...
I then installed your fix and the application still works.

The problem is solved and now I can't and I am not certain why.

I am not going to worry about it now .... but if you have any comments I would appreciate it.

Thanks for the help
 
0
 
LVL 9

Expert Comment

by:glsac
ID: 10809140
:) happy it works!

-Joe
0

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