SQL Connection Problem

[Chris Love]

I have already asked this, but no one seems to know the answer. Here is the
timeline. I wanted to use the membership/roles functionality in a site. I
got all sorts of errors trying to get this setup on the site through the
admin interface.

So I yanked it out of the application since it did not work. Now everytime
I load the site after changing the application I get this error message. If
I simply refresh the page, everything works like it should. It takes the
timeout period, like 60 seconds I guess before the message comes up. This
makes it extremely slow to debug the application.

I have painfully searched through the application to find any refernece to
the membership system, but can find nothing. I do not have SQL 2005 install,
still MSDE 2000 on this machine.
----------------------------------------------------------------------------------------

An error has occurred while establishing a connection to the server. When
connecting to SQL Server 2005, this failure may be caused by the fact that
under the default settings SQL Server does not allow remote connections.
(provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance
Specified)
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.

SQLExpress database file auto-creation error:
The connection string specifies a local Sql Server Express instance using a
database location within the applications App_Data directory. The provider
attempted to automatically create the application services database because
the provider determined that the database does not exist. The following
configuration requirements are necessary to successfully check for existence
of the application services database and automatically create the application
services database:
If the applications App_Data directory does not already exist, the web
server account must have read and write access to the applications directory.
This is necessary because the web server account will automatically create
the App_Data directory if it does not already exist.
If the applications App_Data directory already exists, the web server
account only requires read and write access to the applications App_Data
directory. This is necessary because the web server account will attempt to
verify that the Sql Server Express database already exists within the
applications App_Data directory. Revoking read access on the App_Data
directory from the web server account will prevent the provider from
correctly determining if the Sql Server Express database already exists. This
will cause an error when the provider attempts to create a duplicate of an
already existing database. Write access is required because the web server
accounts credentials are used when creating the new database.
Sql Server Express must be installed on the machine.
The process identity for the web server account must have a local user
profile. See the readme document for details on how to create a local user
profile for both machine and domain accounts.
Source Error:

An unhandled exception was generated during the execution of the current web
request. Information regarding the origin and location of the exception can
be identified using the exception stack trace below.

Stack Trace:
[SqlException (0x80131904): An error has occurred while establishing a
connection to the server. When connecting to SQL Server 2005, this failure
may be caused by the fact that under the default settings SQL Server does not
allow remote connections. (provider: SQL Network Interfaces, error: 26 -
Error Locating Server/Instance Specified)]
System.Data.SqlClient.SqlInternalConnection.OnErro r(SqlException
exception, Boolean breakConnection) +734787

System.Data.SqlClient.TdsParser.ThrowExceptionAndW arning(TdsParserStateObject
stateObj) +188
System.Data.SqlClient.TdsParser.Connect(Boolean& useFailoverPartner,
Boolean& failoverDemandDone, String host, String failoverPartner, String
protocol, SqlInternalConnectionTds connHandler, Int64 timerExpire, Boolean
encrypt, Boolean trustServerCert, Boolean integratedSecurity, SqlConnection
owningObject, Boolean aliasLookup) +820

System.Data.SqlClient.SqlInternalConnectionTds.Ope nLoginEnlist(SqlConnection
owningObject, SqlConnectionString connectionOptions, String newPassword,
Boolean redirectedUserInstance) +628

System.Data.SqlClient.SqlInternalConnectionTds..ct or(DbConnectionPoolIdentity
identity, SqlConnectionString connectionOptions, Object providerInfo, String
newPassword, SqlConnection owningObject, Boolean redirectedUserInstance) +170

System.Data.SqlClient.SqlConnectionFactory.CreateC onnection(DbConnectionOptions
options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection
owningConnection) +130

System.Data.ProviderBase.DbConnectionFactory.Creat eNonPooledConnection(DbConnection owningConnection, DbConnectionPoolGroup poolGroup) +27
System.Data.ProviderBase.DbConnectionFactory.GetCo nnection(DbConnection
owningConnection) +47
System.Data.ProviderBase.DbConnectionClosed.OpenCo nnection(DbConnection
outerConnection, DbConnectionFactory connectionFactory) +105
System.Data.SqlClient.SqlConnection.Open() +111
System.Web.Management.SqlServices.GetSqlConnection (String server, String
user, String password, Boolean trusted, String connectionString) +68

[HttpException (0x80004005): Unable to connect to SQL Server database.]
System.Web.Management.SqlServices.GetSqlConnection (String server, String
user, String password, Boolean trusted, String connectionString) +124
System.Web.Management.SqlServices.SetupApplication Services(String server,
String user, String password, Boolean trusted, String connectionString,
String database, String dbFileName, SqlFeatures features, Boolean install) +86
System.Web.Management.SqlServices.Install(String database, String
dbFileName, String connectionString) +25
System.Web.DataAccess.SqlConnectionHelper.CreateMd fFile(String
fullFileName, String dataDir, String connectionString) +397

[Chris Love]

I figured it out:

https://help.maximumasp.com/SmarterT...?articleid=878

I guess once you try it messes up your machine.config to include references
to a non-existnant database or something. I had even tried to reset the
machine config, but thaqt did not help. This did, the key was setting you
the web.config.

Just as a side note, I think the MS engineers sometimes forget that MOST web
sites do not have a dedicated database or web server for them to run on.
Most are in a shared environment. These instructions are super valuable to
about 95% of ASP.NET developers.

"Chris Love" wrote:

I have already asked this, but no one seems to know the answer. Here is the
timeline. I wanted to use the membership/roles functionality in a site. I
got all sorts of errors trying to get this setup on the site through the
admin interface.

So I yanked it out of the application since it did not work. Now everytime
I load the site after changing the application I get this error message. If
I simply refresh the page, everything works like it should. It takes the
timeout period, like 60 seconds I guess before the message comes up. This
makes it extremely slow to debug the application.

I have painfully searched through the application to find any refernece to
the membership system, but can find nothing. I do not have SQL 2005 install,
still MSDE 2000 on this machine.
----------------------------------------------------------------------------------------

An error has occurred while establishing a connection to the server. When
connecting to SQL Server 2005, this failure may be caused by the fact that
under the default settings SQL Server does not allow remote connections.
(provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance
Specified)
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.

SQLExpress database file auto-creation error:
The connection string specifies a local Sql Server Express instance using a
database location within the applications App_Data directory. The provider
attempted to automatically create the application services database because
the provider determined that the database does not exist. The following
configuration requirements are necessary to successfully check for existence
of the application services database and automatically create the application
services database:
If the applications App_Data directory does not already exist, the web
server account must have read and write access to the applications directory.
This is necessary because the web server account will automatically create
the App_Data directory if it does not already exist.
If the applications App_Data directory already exists, the web server
account only requires read and write access to the applications App_Data
directory. This is necessary because the web server account will attempt to
verify that the Sql Server Express database already exists within the
applications App_Data directory. Revoking read access on the App_Data
directory from the web server account will prevent the provider from
correctly determining if the Sql Server Express database already exists. This
will cause an error when the provider attempts to create a duplicate of an
already existing database. Write access is required because the web server
accounts credentials are used when creating the new database.
Sql Server Express must be installed on the machine.
The process identity for the web server account must have a local user
profile. See the readme document for details on how to create a local user
profile for both machine and domain accounts.
Source Error:

An unhandled exception was generated during the execution of the current web
request. Information regarding the origin and location of the exception can
be identified using the exception stack trace below.

Stack Trace:
[SqlException (0x80131904): An error has occurred while establishing a
connection to the server. When connecting to SQL Server 2005, this failure
may be caused by the fact that under the default settings SQL Server does not
allow remote connections. (provider: SQL Network Interfaces, error: 26 -
Error Locating Server/Instance Specified)]
System.Data.SqlClient.SqlInternalConnection.OnErro r(SqlException
exception, Boolean breakConnection) +734787

System.Data.SqlClient.TdsParser.ThrowExceptionAndW arning(TdsParserStateObject
stateObj) +188
System.Data.SqlClient.TdsParser.Connect(Boolean& useFailoverPartner,
Boolean& failoverDemandDone, String host, String failoverPartner, String
protocol, SqlInternalConnectionTds connHandler, Int64 timerExpire, Boolean
encrypt, Boolean trustServerCert, Boolean integratedSecurity, SqlConnection
owningObject, Boolean aliasLookup) +820

System.Data.SqlClient.SqlInternalConnectionTds.Ope nLoginEnlist(SqlConnection
owningObject, SqlConnectionString connectionOptions, String newPassword,
Boolean redirectedUserInstance) +628

System.Data.SqlClient.SqlInternalConnectionTds..ct or(DbConnectionPoolIdentity
identity, SqlConnectionString connectionOptions, Object providerInfo, String
newPassword, SqlConnection owningObject, Boolean redirectedUserInstance) +170

System.Data.SqlClient.SqlConnectionFactory.CreateC onnection(DbConnectionOptions
options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection
owningConnection) +130

System.Data.ProviderBase.DbConnectionFactory.Creat eNonPooledConnection(DbConnection owningConnection, DbConnectionPoolGroup poolGroup) +27
System.Data.ProviderBase.DbConnectionFactory.GetCo nnection(DbConnection
owningConnection) +47
System.Data.ProviderBase.DbConnectionClosed.OpenCo nnection(DbConnection
outerConnection, DbConnectionFactory connectionFactory) +105
System.Data.SqlClient.SqlConnection.Open() +111
System.Web.Management.SqlServices.GetSqlConnection (String server, String
user, String password, Boolean trusted, String connectionString) +68

[HttpException (0x80004005): Unable to connect to SQL Server database.]
System.Web.Management.SqlServices.GetSqlConnection (String server, String
user, String password, Boolean trusted, String connectionString) +124
System.Web.Management.SqlServices.SetupApplication Services(String server,
String user, String password, Boolean trusted, String connectionString,
String database, String dbFileName, SqlFeatures features, Boolean install) +86
System.Web.Management.SqlServices.Install(String database, String
dbFileName, String connectionString) +25
System.Web.DataAccess.SqlConnectionHelper.CreateMd fFile(String
fullFileName, String dataDir, String connectionString) +397