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get error The SMTP server requires a secure connection or the client was not authenticated. The serv

Posted By:      Posted Date: September 16, 2010    Points: 0   Category :ASP.Net
 
 Hi,I was able to send mail with no trouble before few days.Then due to some reason, i Formatted pc &  re-installed visual studio & IIS Now when i try to send mail, i get this error.The SMTP server requires a secure connection or the client was not authenticated.In my web.config file i write<mailSettings>      <smtp from="myemail@gmail.com">        <network host="smtp.gmail.com" port="587" userName="myemail" password="xxxx" defaultCredentials="false"/>      </smtp>    </mailSettings>  </system.net>  And on SEND MAIL Button click event I write ( CODE BEHIND)   Dim smtp As New System.Net.Mail.SmtpClient()  Dim smail As New System.Net.Mail.MailMessage smail.To.Add(New System.Net.Mail.MailAddress("contactperson@yahoo.co.in"))        smail.From = New System.Net.Mail.MailAddress("myemail@gmail.com")        smail.Subject = "HELLOO ..HOW R U?"        smail.IsBodyHtml = "true"        smail.Body = "" & txtmail.Text        s


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The SMTP server requires a secure connection or the client was not authenticated.........

  
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Error adding connection in Server Explorer: "Unable to add data connection. ExecuteScalar requires a

  
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Connection problem while connecting from client to server.

  
Hello, i am trying to connect sql server 2005 express using c#.net 3.5. my connection string is "Server=.\SQLExpress;AttachDbFilename=C:\Program Files\Microsoft SQL Server\MSSQL.2\MSSQL\DATA\db_naren.mdf;Database=db_naren; Trusted_Connection=Yes;" this is working fine when i am connecting to sql server from the local machine. When i am trying to connect from someother machine to server it is giving error like 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) i added previliges in add new administrator on SQL Server 2005 Surface Area Configuration . and i made changes on SQL Server 2005 Surface Area Configuration  page, on Database Engine --> Remote Connections -->Local and remote connections --> Using both TCP/IP and named pipelines. still same error i am getting from client machine i am using connection string as "Server=MyServer\SQLExpress;AttachDbFilename=C:\Program Files\Microsoft SQL Server\MSSQL.2\MSSQL\DATA\db_naren.mdf;Database=db_nare; Trusted_Connection=Yes;" is there any thing i need to do to connect from client machine to server?please

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A network-related or instance-specific error occurred while establishing a connection to SQL Server.

  
I know what the problem is. I am just not sure how to fix it. I get the error below when I have this: < roleManager enabled="true" />  It works fine when I set rolemanager = false but I need to use membership roles.   my connection strings are:  <connectionStrings> <add name="ConnMSSQLASP" connectionString="Data Source=MISFS;Initial Catalog=ASPNetDB;User Id=----;Password=-----;" providerName="System.Data.SqlClient"/> <add name="DisasterRecoveryConnectionString" connectionString="Data Source=MISFS;Initial Catalog=ASPNetDB;User Id=----;Password=----" providerName="System.Data.SqlClient"/> </connectionStrings>    Can someone help me with this? ERROR Below: 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. SQLExpress database file auto-creation error: The connection string s

network - related or instance-specific error occurred while establishing a connection to sql server

  
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A network-related or instance-specific error occurred while establishing a connection to SQL Server

  
I got this error when i try to connect to sql server10.0  from c# 2008 express. any idea.Pedro

network-related or instance-specific error occurred while establishing a connection to SQL Server

  
I have two database one on sql server 2000 and other on 2005. When i am connecting my application through web serviceit gives exception:"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)"with sql server 2000 no such problem occurs. I have cheked the firewall and web.config connection string also.

Error Message: The attempt to connect to the report server failed. Check your connection informatio

  
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I keep getting a weired alert on the SQL Server 2005 Box, I would appreciate if some one can assist me in this. However my application is running smoothly, just wondering if any of you have seen such an error 'Alert 1:  Critical Failure in log file for Monitor_DB: Monitor_DB: :__FAILURE__: error with database connection 'HOSTNAME\INSTANCE@master' with error message: API client not supported' I am not sure what API client is trying to connect, I have a BizTalk server which connects to the SQL Server box, and the connections and processing are going on smooth, but still I keep getting this error. Can anyone assist me. Thanks in advance.

A network-related or instance-specific error occurred while establishing a connection to SQL Server

  

I just opened the project. Yesterday everything worked fine. It does not work any link database.
Today I open the project and displays:

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 error occurred within the report server database. This may be due to a connection failure, timeo

  

 

I can't get Reporting Services to work with Sharepoint.

I've followed the instructions for installation of Reporting Service in SharePoint Integrated Mode, and completed the indicated steps on the SharePoint Central Administration Site successfully.  When I try to create a page with a Reporting Services Webpart, I get the following error:

===========================

Invalid object name 'History'.
----------------------------
An error occurred within the report server database.  This may be due to a connection failure, timeout or low disk condition within the database. (rsReportServerDatabaseError)

============================

I have SQL 2008 R2, SharePoint Enterprise 2010, and Report Builder 3.0.  SQL and Sharepoint are installed on the same server.

I'm certain that there isn't a disk or timeout problem, so I'm assuming that it's a connection failure, but don't know what steps to take to troubleshoot and correct this.

Thanks


A network-related or instance-specific error occurred while establishing a connection to SQL Server

  

Hi,

I've created a small website with a simple sqlite database using vwd 2010 .net 4. In dev and test envionments everything works fine, however when i promote to my hosting provider i receive the following error:

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)

I've been configuring the connection strings (autogenerated from entity framework and attached db) but unable to get it working on the hosting provider, I'm assuming it's related to permissions but not entirely sure how to resolve - here's the web.config as it stands:

<add name

Named Pipes Provider, error: 40 - Could not open a connection to SQL Server

  

This was originally posted in the SSIS Forum, but a member of the IS team suggested it be moved here.  "Most recently I got this error (Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) so does this mean that SQL Server is still trying to use named pipes even if I only have TCP/IP enabled in SQL Server Configuration Manager?"

I'm having the same issue, and here's our scenario:

  1. Installed SQL Server 2005 Developer Edition on a machine with WinXP SP2 and enabled remote connections over TCP/IP
  2. Installed SQL Server 2005 Standard Edition on a machine with Win2003 SP1 (remote connections over TCP/IP enabled by default)
  3. Attempted to 'Copy Database' from Developer Edition TO Standard Edition using 'Detach and Attach' method and recieved the error on the Win2003 machine: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server
  4. A
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