cannot connect to sql database on shared server - asp.net

I have purchased a website that was installed on a dedicated server. I have now moved it to arvixe and was able to successfully restore the database on one of their shared servers. I am able to connect to the server from sql studio management studio 2008 by using the domain name (www.mydomain.com) and the username and password of the database account i setup in the arvixe control panel. However, I am not able to connect to the database with the application. I am able to see pages of the site that do not use the database. The application is using .net 3.5 so I have set the server to .net 2.0 with classic IIS. I have done lots of searching on the web and have read through many forums. I have tried every possible option for connection strings in web.config and still receive this same error:
Server Error in '/' Application.
A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to 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.
Exception Details: System.Data.SqlClient.SqlException: A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)
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): A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)]
System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) +4849719
System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) +194
System.Data.SqlClient.TdsParser.Connect(ServerInfo serverInfo, SqlInternalConnectionTds connHandler, Boolean ignoreSniOpenTimeout, Int64 timerExpire, Boolean encrypt, Boolean trustServerCert, Boolean integratedSecurity, SqlConnection owningObject) +4863021
System.Data.SqlClient.SqlInternalConnectionTds.AttemptOneLogin(ServerInfo serverInfo, String newPassword, Boolean ignoreSniOpenTimeout, Int64 timerExpire, SqlConnection owningObject) +90
System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(String host, String newPassword, Boolean redirectedUserInstance, SqlConnection owningObject, SqlConnectionString connectionOptions, Int64 timerStart) +376
System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection owningObject, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance) +221
System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, String newPassword, SqlConnection owningObject, Boolean redirectedUserInstance) +189
System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection) +185
System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnection owningConnection, DbConnectionPool pool, DbConnectionOptions options) +31
System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject) +433
System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject) +66
System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject) +499
System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) +65
System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) +117
System.Data.SqlClient.SqlConnection.Open() +122
System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +14
System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +35
System.Web.UI.Control.OnLoad(EventArgs e) +99
System.Web.UI.Control.LoadRecursive() +50
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +627
Version Information: Microsoft .NET Framework Version:2.0.50727.4223; ASP.NET Version:2.0.50727.4223
Right now my connection strings are in the following format in web.config. I have one for appsettings and one for connectionstrings and have also added info to applicationsetting.cs:
<appsettings>
<add key="ConnStringWebsite" value="SERVER=www.mydomain.com;DATABASE=mydatabase;UID=xxxxx;PWD=xxxxx"/>
<appsettings/>
<connectionstrings>
<add name="FantasyActionConnectionString" connectionString="SERVER=www.mydomain.com;DATABASE=mydatabase;UID=xxxxx;PWD=xxxxx"/>
<connectionstrings/>
ApplicationSettings.cs
//Connection String
private const string _CONNSERVER = #"www.mydomain.com";
private const string _CONNDATABASE = "mydatabase";
private const string _CONNUSERID = #"xxxxxx";
private const string _CONNPASSWORD = "xxxxxx";

Related

ASP.NET 4.5 Forms Authentication after hosting

I have a .NET 4.5 Forms application that works great locally. Does not require any authentication and I can use all pages. However, I am able to register user, log in and log out without any problems.
On godaddy, I can get to an HTML page I put on godaddy so everything is setup fine. But when I try to go to Default.aspx, I get a log in error even though nothing is requiring authentication locally. When I try to register a user, I get this error below.
One thing I noticed is that my application is 4.5 and this error shows 4.0 at the bottom. Now on godaddy, they just say you are using 4.0/4.5. There is no separation between them. I have talked to godaddy few times but they say they have very little technical help for custom sites like this and I have to resolve these. But if the .NET version is the problem, I will convert my projects or recreate them in 4.0.
Server Error in '/' Application.
The system cannot find the file 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.
Exception Details: System.ComponentModel.Win32Exception: The system
cannot find the file specified
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:
[Win32Exception (0x80004005): The system cannot find the file
specified]
[SqlException (0x80131904): A network-related or instance-specific
error occurred while establishing a connection to SQL Server. The
server was not found or was not accessible. Verify that the instance
name is correct and that SQL Server is configured to allow remote
connections. (provider: SQL Network Interfaces, error: 52 - Unable to
locate a Local Database Runtime installation. Verify that SQL Server
Express is properly installed and that the Local Database Runtime
feature is enabled.)]
System.Data.SqlClient.SqlInternalConnection.OnError(SqlException
exception, Boolean breakConnection, Action1 wrapCloseInAction)
+5296071 System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject
stateObj, Boolean callerHasConnectionLock, Boolean asyncClose) +558
System.Data.SqlClient.TdsParser.Connect(ServerInfo serverInfo,
SqlInternalConnectionTds connHandler, Boolean ignoreSniOpenTimeout,
Int64 timerExpire, Boolean encrypt, Boolean trustServerCert, Boolean
integratedSecurity, Boolean withFailover) +5308555
System.Data.SqlClient.SqlInternalConnectionTds.AttemptOneLogin(ServerInfo
serverInfo, String newPassword, SecureString newSecurePassword,
Boolean ignoreSniOpenTimeout, TimeoutTimer timeout, Boolean
withFailover) +145
System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(ServerInfo
serverInfo, String newPassword, SecureString newSecurePassword,
Boolean redirectedUserInstance, SqlConnectionString connectionOptions,
SqlCredential credential, TimeoutTimer timeout) +920
System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(TimeoutTimer
timeout, SqlConnectionString connectionOptions, SqlCredential
credential, String newPassword, SecureString newSecurePassword,
Boolean redirectedUserInstance) +307
System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity
identity, SqlConnectionString connectionOptions, SqlCredential
credential, Object providerInfo, String newPassword, SecureString
newSecurePassword, Boolean redirectedUserInstance, SqlConnectionString
userConnectionOptions) +434
System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions
options, DbConnectionPoolKey poolKey, Object poolGroupProviderInfo,
DbConnectionPool pool, DbConnection owningConnection,
DbConnectionOptions userOptions) +225
System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnectionPool
pool, DbConnectionOptions options, DbConnectionPoolKey poolKey,
DbConnectionOptions userOptions) +37
System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnectionOptions
userOptions) +558
System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnectionOptions
userOptions) +67
System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection
owningObject, UInt32 waitForMultipleObjectsTimeout, Boolean
allowCreate, Boolean onlyOneCheckConnection, DbConnectionOptions
userOptions, DbConnectionInternal& connection) +1052
System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection
owningObject, TaskCompletionSource1 retry, DbConnectionOptions
userOptions, DbConnectionInternal& connection) +78
System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection
owningConnection, TaskCompletionSource1 retry, DbConnectionOptions
userOptions, DbConnectionInternal& connection) +167
System.Data.ProviderBase.DbConnectionClosed.TryOpenConnection(DbConnection
outerConnection, DbConnectionFactory connectionFactory,
TaskCompletionSource1 retry, DbConnectionOptions userOptions) +143
System.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource1
retry) +83 System.Data.SqlClient.SqlConnection.Open() +96
System.Data.SqlClient.SqlProviderServices.UsingConnection(SqlConnection
sqlConnection, Action1 act) +79
System.Data.SqlClient.SqlProviderServices.UsingMasterConnection(SqlConnection
sqlConnection, Action`1 act) +384
System.Data.SqlClient.SqlProviderServices.GetDbProviderManifestToken(DbConnection
connection) +241
System.Data.Common.DbProviderServices.GetProviderManifestToken(DbConnection
connection) +26
[ProviderIncompatibleException: The provider did not return a
ProviderManifestToken string.]
System.Data.Common.DbProviderServices.GetProviderManifestToken(DbConnection
connection) +170
System.Web.Providers.ModelHelper.GetStorageMetadata(String
providerName, DbConnection connection, String ssdl) +35
System.Web.Providers.ModelHelper.CreateMetadataWorkspace(String
providerName, DbConnection connection, String csdl, String ssdl,
String msl) +154
System.Web.Providers.ModelHelper.CreateEntityConnection(ConnectionStringSettings
setting, String csdl, String ssdl, String msl) +109
System.Web.Providers.ModelHelper.CreateMembershipEntities(ConnectionStringSettings
setting) +28
System.Web.Providers.DefaultMembershipProvider.Membership_CreateUser(String
applicationName, String userName, String password, String salt, String
email, String passwordQuestion, String passwordAnswer, Boolean
isApproved, DateTime& createDate, Boolean uniqueEmail, Int32
passwordFormat, Object& providerUserKey) +51
System.Web.Providers.DefaultMembershipProvider.CreateUser(String
username, String password, String email, String passwordQuestion,
String passwordAnswer, Boolean isApproved, Object providerUserKey,
MembershipCreateStatus& status) +823
System.Web.UI.WebControls.CreateUserWizard.AttemptCreateUser() +304
System.Web.UI.WebControls.CreateUserWizard.OnNextButtonClick(WizardNavigationEventArgs
e) +110 System.Web.UI.WebControls.Wizard.OnBubbleEvent(Object
source, EventArgs e) +401
System.Web.UI.WebControls.CreateUserWizard.OnBubbleEvent(Object
source, EventArgs e) +119
System.Web.UI.Control.RaiseBubbleEvent(Object source, EventArgs args)
+37 System.Web.UI.WebControls.Button.OnCommand(CommandEventArgs e) +114 System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) +159
System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String
eventArgument) +10
System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler
sourceControl, String eventArgument) +13
System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData)
+35 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
+1724
Version Information: Microsoft .NET Framework Version:4.0.30319;
ASP.NET Version:4.0.30319.18055
I have a .NET 4.5 Forms application that works great locally. Does not
require any authentication and I can use all pages
If you run the application locally, Visual Studio uses SQL Express for development. As the result, it is working without even you notice it. Normally, the database is created inside App_Data folder.
A network-related or instance-specific error occurred while
establishing a connection to SQL Server. The server was not found or
was not accessible. Verify that the instance name is correct and that
SQL Server is configured to allow remote connections.
However, when you deploy the application (to GoDaddy), you need to explicitly provide the connection in web.config to connect to actual SQL Server.
According to the above error message, you did not provide the correct connection string in web.config.

The connection string specifies a local Sql Server Express instance using a database location within the application's App_Data directory.

I'm building an SMS application and get an error. I don't understand the error because I'm a beginner.
The connection string specifies a local Sql Server Express instance using a database location within the application's App_Data directory. The provider attempted to automatically create the application services database because the provider determined that the database does not exist. Here it's showing as sql server express but I want to use sql server 2008 DB.
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): A network-related or instance-specific
error occurred while establishing a connection to SQL Server. The
server was not found or was not accessible. Verify that the instance
name is correct and that SQL Server is configured to allow remote
connections. (provider: SQL Network Interfaces, error: 26 - Error
Locating Server/Instance Specified)]
System.Data.SqlClient.SqlInternalConnection.OnError(SqlException
exception, Boolean breakConnection) +5066458
System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning() +234
System.Data.SqlClient.TdsParser.Connect(ServerInfo serverInfo,
SqlInternalConnectionTds connHandler, Boolean ignoreSniOpenTimeout,
Int64 timerExpire, Boolean encrypt, Boolean trustServerCert, Boolean
integratedSecurity) +341
System.Data.SqlClient.SqlInternalConnectionTds.AttemptOneLogin(ServerInfo
serverInfo, String newPassword, Boolean ignoreSniOpenTimeout,
TimeoutTimer timeout, SqlConnection owningObject) +129
System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(ServerInfo
serverInfo, String newPassword, Boolean redirectedUserInstance,
SqlConnection owningObject, SqlConnectionString connectionOptions,
TimeoutTimer timeout) +270
System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection
owningObject, TimeoutTimer timeout, SqlConnectionString
connectionOptions, String newPassword, Boolean redirectedUserInstance)
+195 System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity
identity, SqlConnectionString connectionOptions, Object providerInfo,
String newPassword, SqlConnection owningObject, Boolean
redirectedUserInstance) +232
System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions
options, Object poolGroupProviderInfo, DbConnectionPool pool,
DbConnection owningConnection) +5080107
System.Data.ProviderBase.DbConnectionFactory.CreateNonPooledConnection(DbConnection
owningConnection, DbConnectionPoolGroup poolGroup) +31
System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection
owningConnection) +76
System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection
outerConnection, DbConnectionFactory connectionFactory) +126
System.Data.SqlClient.SqlConnection.Open() +125
System.Web.Management.SqlServices.GetSqlConnection(String server,
String user, String password, Boolean trusted, String
connectionString) +82
[HttpException (0x80004005): Unable to connect to SQL Server
database.]
System.Web.Management.SqlServices.GetSqlConnection(String server,
String user, String password, Boolean trusted, String
connectionString) +137
System.Web.Management.SqlServices.SetupApplicationServices(String
server, String user, String password, Boolean trusted, String
connectionString, String database, String dbFileName, SqlFeatures
features, Boolean install) +94
System.Web.Management.SqlServices.Install(String database, String
dbFileName, String connectionString) +27
System.Web.DataAccess.SqlConnectionHelper.CreateMdfFile(String
fullFileName, String dataDir, String connectionString) +395
Have you added your connection string to your web.config file? If you have, what does it look like?
Sorry I can't add comments due to not having enough points.

Error when trying to create user

I'm getting an error when I try to register a new user on my website. It works fine when run from my computer but after uploading it to my host, I get the error below.
I used visual studios pre-configured login/register functions.
Thanks for any help.
A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to 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.
Exception Details: System.Data.SqlClient.SqlException: A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)
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): A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)]
System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) +5061946
System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning() +234
System.Data.SqlClient.TdsParser.Connect(ServerInfo serverInfo, SqlInternalConnectionTds connHandler, Boolean ignoreSniOpenTimeout, Int64 timerExpire, Boolean encrypt, Boolean trustServerCert, Boolean integratedSecurity) +341
System.Data.SqlClient.SqlInternalConnectionTds.AttemptOneLogin(ServerInfo serverInfo, String newPassword, Boolean ignoreSniOpenTimeout, TimeoutTimer timeout, SqlConnection owningObject) +129
System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(ServerInfo serverInfo, String newPassword, Boolean redirectedUserInstance, SqlConnection owningObject, SqlConnectionString connectionOptions, TimeoutTimer timeout) +270
System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection owningObject, TimeoutTimer timeout, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance) +195
System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, String newPassword, SqlConnection owningObject, Boolean redirectedUserInstance) +232
System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection) +5075607
System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnection owningConnection, DbConnectionPool pool, DbConnectionOptions options) +33
System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject) +524
System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject) +66
System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject) +479
System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) +108
System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) +126
System.Data.SqlClient.SqlConnection.Open() +125
System.Web.DataAccess.SqlConnectionHolder.Open(HttpContext context, Boolean revertImpersonate) +95
System.Web.DataAccess.SqlConnectionHelper.GetConnection(String connectionString, Boolean revertImpersonation) +206
System.Web.Security.SqlMembershipProvider.CreateUser(String username, String password, String email, String passwordQuestion, String passwordAnswer, Boolean isApproved, Object providerUserKey, MembershipCreateStatus& status) +2587
System.Web.UI.WebControls.CreateUserWizard.AttemptCreateUser() +302
System.Web.UI.WebControls.CreateUserWizard.OnNextButtonClick(WizardNavigationEventArgs e) +111
System.Web.UI.WebControls.Wizard.OnBubbleEvent(Object source, EventArgs e) +413
System.Web.UI.WebControls.CreateUserWizard.OnBubbleEvent(Object source, EventArgs e) +121
System.Web.UI.WebControls.WizardChildTable.OnBubbleEvent(Object source, EventArgs args) +19
System.Web.UI.Control.RaiseBubbleEvent(Object source, EventArgs args) +37
System.Web.UI.WebControls.Button.OnCommand(CommandEventArgs e) +125
System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) +167
System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +10
System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +13
System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +36
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +5563
Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.272
Looks like you did not change the connection string to point to the database on the hosts system.
If you are using a sqlexpress database I don't think this will work. Most shared hosting sites disable (do not install) sql express because it is not as resource friendly as sql server.
If you are using a shared hosting environment, then you will need to use the hosting site to create a the database. They should also give you the connection string you need to use to connect to the datagbase.
save youe database file on server, i thnk you have given path of local system drive.
data source=.\SQLEXPRESS;Integrated Security=SSPI;AttachDBFilename=|DataDirectory|\aspnetdb.mdf;User Instance=true" providerName="System.Data.SqlClient"

Error creating Membership with roles with aspnet.regsql.exe

I have an asp.net app, I am using vs 2010, and I connect to sql server express 2008 r2 using windows authentication. I can connect to my database and crud my data through my app just fine.
I am trying to implement Membership with roles on my website
When I run the aspnet.regsql.exe utility, I get the following error message:
Setup failed.
Exception:
Unable to connect to SQL Server database.
Details of failure
System.Web.HttpException (0x80004005): Unable to connect to SQL Server database. ---> System.Data.SqlClient.SqlException (0x80131904): A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)
at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection)
at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning()
at System.Data.SqlClient.TdsParser.Connect(ServerInfo serverInfo, SqlInternalConnectionTds connHandler, Boolean ignoreSniOpenTimeout, Int64 timerExpire, Boolean encrypt, Boolean trustServerCert, Boolean integratedSecurity)
at System.Data.SqlClient.SqlInternalConnectionTds.AttemptOneLogin(ServerInfo serverInfo, String newPassword, Boolean ignoreSniOpenTimeout, TimeoutTimer timeout, SqlConnection owningObject)
at System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(ServerInfo serverInfo, String newPassword, Boolean redirectedUserInstance, SqlConnection owningObject, SqlConnectionString connectionOptions, TimeoutTimer timeout)
at System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection owningObject, TimeoutTimer timeout, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance)
at System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, String newPassword, SqlConnection owningObject, Boolean redirectedUserInstance)
at System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection)
at System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnection owningConnection, DbConnectionPool pool, DbConnectionOptions options)
at System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject)
at System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject)
at System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject)
at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection)
at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory)
at System.Data.SqlClient.SqlConnection.Open()
at System.Web.Management.SqlServices.GetSqlConnection(String server, String user, String password, Boolean trusted, String connectionString)
at System.Web.Management.SqlServices.GetSqlConnection(String server, String user, String password, Boolean trusted, String connectionString)
at System.Web.Management.SqlServices.SetupApplicationServices(String server, String user, String password, Boolean trusted, String connectionString, String database, String dbFileName, SqlFeatures features, Boolean install)
at System.Web.Management.ConfirmPanel.Execute()
Also, I am unable to use the ASP.NET Website Adimistration Tool. When I click on the Security tab I receive the following error:
There is a problem with your selected data store. This can be caused by an invalid server name or credentials, or by insufficient permission. It can also be caused by the role manager feature not being enabled. Click the button below to be redirected to a page where you can choose a new data store.
The following message may help in diagnosing the problem: Could not find stored procedure 'dbo.aspnet_CheckSchemaVersion'.
So, I click on the 'Choose Data Store' button as instructed, which allows me to select a a Provider. The provider is named 'AspNetSqlProvider', it has a Test link beside it. I click on Test and receive the following message:
Successfully established a connection to the database.
Successfully established a connection to the database. this works, but the problems still exists, and the previous errors occur when i repeat the steps i have already discussed.
Does anybody know whats causing this, and how to fix this?
If you are unable to connect to the SQL Server, then either your connection string has an error, or you do not have SQL Server enabled for mixed mode authentication.

how to setup write permission on App_data in IIS 7?

I need to setup a site to work with a local IIS 7 server (running windows 7). And I get a permissions error stating that I should setup write permission on the App_Data folder.
Where do I do this? Do I do this through IIS 7 management, or windows explorer?
url I used for default asp.net website project:
http://localhost:10000/Account/Register.aspx?ReturnUrl=
Server Error in '/' Application.
User does not have permission to perform this action.
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: User does not have permission to perform this action.
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): User does not have permission to perform this action.]
System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) +6277312
System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning() +412
System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj) +1363
System.Data.SqlClient.SqlInternalConnectionTds.CompleteLogin(Boolean enlistOK) +53
System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(ServerInfo serverInfo, String newPassword, Boolean redirectedUserInstance, SqlConnection owningObject, SqlConnectionString connectionOptions, TimeoutTimer timeout) +6292062
System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection owningObject, TimeoutTimer timeout, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance) +6291977
System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, String newPassword, SqlConnection owningObject, Boolean redirectedUserInstance) +352
System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection) +506
System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnection owningConnection, DbConnectionPool pool, DbConnectionOptions options) +49
System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject) +6293782
System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject) +78
System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject) +1922
System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) +89
System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) +6296606
System.Data.SqlClient.SqlConnection.Open() +300
System.Web.DataAccess.SqlConnectionHolder.Open(HttpContext context, Boolean revertImpersonate) +150
System.Web.DataAccess.SqlConnectionHelper.GetConnection(String connectionString, Boolean revertImpersonation) +4603263
System.Web.Security.SqlMembershipProvider.CreateUser(String username, String password, String email, String passwordQuestion, String passwordAnswer, Boolean isApproved, Object providerUserKey, MembershipCreateStatus& status) +2858
System.Web.UI.WebControls.CreateUserWizard.AttemptCreateUser() +412
System.Web.UI.WebControls.CreateUserWizard.OnNextButtonClick(WizardNavigationEventArgs e) +226
System.Web.UI.WebControls.Wizard.OnBubbleEvent(Object source, EventArgs e) +586
System.Web.UI.Control.RaiseBubbleEvent(Object source, EventArgs args) +52
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3691
Another possible answer for IIS 7.5+ (Windows Server 2008) is to allow write by the group "IIS_IUSRS". I believe this group even incorporates the IIS 8+ AppPool users, so its a much more durable way to ensure write access to App_Data
C:\inetpub\wwwroot> icacls App_Data /grant IIS_IUSRS:M
processed file: App_Data
Successfully processed 1 files; Failed processing 0 files
C:\inetpub\wwwroot>
I had to setup the site to use application pass-through, and then change the application pool to use NetworkService.
If your application pool uses ApplicationPoolIdentity which is recommended and default you need to grant permissions to IIS AppPool\YourAppPoolName.
See also
https://learn.microsoft.com/en-us/iis/manage/configuring-security/application-pool-identities
Note that the ApplicationPoolIdentity is a virtual, local account for each application pool which is not part of the SAM database. So some applications refuse to select this accounts.
Note also that old, discontinued IIS releases did not provide the ApplicationPoolIdentity feature.

Resources