Configuration :: Connection Attempt Failed?
Aug 11, 2010
I'm using SQL 2005 for my current project. My remote hosting server uses port number 4433 for my database. So my connection string is as follows data source=IPaddress,4433;initial catalog=mydb;UID=sand;PWD=sand45;
But when connecting from my local machine from .NET or from SQL Management Studion it creates an 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: TCP Provider, error: 0 - A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.
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Mar 23, 2010
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Feb 14, 2011
I am using the codes sample from Peter through this link:http://www.eggheadcafe.com/articles/20030316.asp
to validate email address. I made some minor modification to validate user email address after the user have entered his or her email address as show below
string[] host = (address.Split('@'));
string hostname = host[1];
IPHostEntry IPhst =
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IPEndPoint endPt =
new
IPEndPoint(IPhst.AddressList[0], 25);
Socket s =
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The last line of code s.Connect(endPt) generated the following error if the user email address is anything other than the company email address. I have try gmail, hotmail and they all generated the same error. Can the experts tell me how to get around the problem.
Here is the error:System.Net.Sockets.SocketException: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond 64.4.20.174:25
at System.Net.Sockets.Socket.DoConnect(EndPoint endPointSnapshot, SocketAddress socketAddress)at System.Net.Sockets.Socket.Connect(EndPoint remoteEP)
at MGHRadiologyAlert.IfaWebService.ValidateEmailAddress(String address) in
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May 7, 2015
I got an error "A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond".when i am sending email when attachment.
protected void lbtn_DownloadForm_Click(object sender, EventArgs e)
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using (StringWriter sw = new StringWriter())
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using (HtmlTextWriter hw = new HtmlTextWriter(sw))
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[code]....
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Aug 19, 2010
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(Inner Most Exception) System.Net.Sockets.SocketException: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond x.x.x.x:80(Middle Exception) System.Net.WebException: Unable to connect to the remote server(Outer Exception) System.ServiceModel.EndpointNotFoundException: Could not connect to http://<MYSite>/<MYApp>/<MYService>.svc.TCP error code 10060: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond x.x.x.x:80.
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<basicHttpBinding>
<binding name="LongerTimeout"
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maxBufferPoolSize="2147483647">
<readerQuotas maxArrayLength="2147483647" maxStringContentLength="2147483647"/>
</binding>
</basicHttpBinding>
I've seen some indication that setting the receiveTimeout value on the server may help, but I set this to 1 second in a test environment, and was unable to reproduce the problem, leads me to believe its not worth a production environment change to verify this.
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Jul 7, 2010
my code
using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
[code]...
A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond 74.125.155.109:465Description: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.Net.Sockets.SocketException: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond 74.125.155.109:465Source Error:
[Code]....
Line 34: mailClient.EnableSsl = true;Line 35: mailClient.Timeout = 1000000; Line 36: mailClient.Send(mailMessage);Line 37: mailMessage.DeliveryNotificationOptions = DeliveryNotificationOptions.Delay;Line 38: mailMessage.DeliveryNotificationOptions = DeliveryNotificationOptions.OnFailure;
Source File: d:My
WebsitesBenefitsBenefitsDefault.aspx.cs Line: 36
Stack Trace:
[Code]....
[SocketException (0x274c): A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond 74.125.155.109:465] System.Net.Sockets.Socket.DoConnect(EndPoint endPointSnapshot, SocketAddress socketAddress) +239 System.Net.Sockets.Socket.InternalConnect(EndPoint remoteEP) +35 System.Net.ServicePoint.ConnectSocketInternal(Boolean connectFailure, Socket s4, Socket s6, Socket& socket, IPAddress& address, ConnectSocketState state, IAsyncResult asyncResult, Int32 timeout, Exception& exception) +224[WebException: Unable to connect to the remote server] System.Net.ServicePoint.GetConnection(PooledStream PooledStream, Object owner, Boolean async, IPAddress& address, Socket& abortSocket, Socket& abortSocket6, Int32 timeout) +5482743 System.Net.PooledStream.Activate(Object owningObject, Boolean async, Int32 timeout, GeneralAsyncDelegate asyncCallback) +202 System.Net.PooledStream.Activate(Object owningObject, GeneralAsyncDelegate asyncCallback) +21 System.Net.ConnectionPool.GetConnection(Object owningObject, GeneralAsyncDelegate asyncCallback, Int32 creationTimeout) +332 System.Net.Mail.SmtpConnection.GetConnection(String host, Int32 port) +160 System.Net.Mail.SmtpTransport.GetConnection(String host, Int32 port) +159 System.Net.Mail.SmtpClient.GetConnection() +35 System.Net.Mail.SmtpClient.Send(MailMessage message) +1213[SmtpException: Failure sending mail.] System.Net.Mail.SmtpClient.Send(MailMessage message) +1531 Benefits_Default.Page_Load(Object sender, EventArgs e) in d:My WebsitesBenefitsBenefitsDefault.aspx.cs:36 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:2.0.50727.4927; ASP.NET Version:2.0.50727.4927
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Code:
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[code]....
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[Code]....
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[Code]....
The code failed at this line:
objCon = New SqlConnection()
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Description:
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note: Crystal Report works fine in dev environment....
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[Code]....
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May 7, 2015
i have a webapplication hosted on web server. when i open page example login page , if i login after 2-3 mins or open any page after some time i face error, mentioned below. Server Error in '/' Application.Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that <machineKey> configuration specifies the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster. URL...
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.Web.HttpException: Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that <machineKey> configuration specifies the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster.URL...
Source Error:
The source code that generated this unhandled exception can only be shown when compiled in debug mode. To enable this, follow one of the below steps, then request the URL:
1. Add a "Debug=true" directive at the top of the file that generated the error. Example:
<%@ Page Language="C#" Debug="true" %>
or:
2) Add the following section to the configuration file of your application:
<configuration>
<system.web>
<compilation debug="true"/>
</system.web>
</configuration>
Note that this second technique will cause all files within a given application to be compiled in debug mode. The first technique will cause only that particular file to be compiled in debug mode.
Important: Running applications in debug mode does incur a memory/performance overhead. You should make sure that an application has debugging disabled before deploying into production scenario.
[ViewStateException: Invalid viewstate.
Client IP: 14.98.31.134
Port: 59961
Referer: http://www.arpfashions.com/admin/index.aspx
Path: /admin/index.aspx
[code]....
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[Code]....
becouse i always get error !The underlying provider failed on Open!
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how should i avoid this... ?
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May 7, 2015
i have a Error :
<forms name="appNameAuth" path="/" loginUrl="~/login.html" defaultUrl="index.html" </forms>
Server Error in '/' Application.
Access is denied.
Description: An error occurred while accessing the resources required to serve this request. The server may not be configured for access to the requested URL. Error message 401.2.: Unauthorized: Logon failed due to server configuration. Verify that you have permission to view this directory or page based on the credentials you supplied and the authentication methods enabled on the Web server. Contact the Web server's administrator for additional assistance.
The web.config in folder admin of my
<?xml version="1.0"?><configuration><system.web> <authorization><deny users="?"/><allow users="admin,administrator"/><allow roles="admins,administrators"/><deny users="*"/></authorization></system.web></configuration>
In file Global.
routes.MapPageRoute("login", "login.html", "~/login.aspx");routes.MapPageRoute("default", "index.html", "~/index.aspx");
If I use extensions .aspx, it runs normally
<forms name="appNameAuth" path="/" loginUrl="~/login.aspx" defaultUrl="index.aspx" </forms>
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