{"Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host."}
I get the above error when sending email...
I am about to give up debugging SMTP servers to send email... My code is the following
SmtpClient mailClient = new SmtpClient("plus.smtp.mail.yahoo.com", 465);
mailClient.EnableSsl = true;
MailMessage message = new MailMessage();
message.To.Add("aditya15417@hotmail.com");
message.Subject = "permias-tucson-contact-us";
mailClient.Credentials = new NetworkCredential("myemail@yahoo.com", "mypassword");
MailAddress fromAddress = new MailAddress(Email.Text, Name.Text);
message.From = fromAddress;
mailClient.Send(message);
I'm getting a lot of these error messages in my logs on one of my servers and intermittently on two others.Googling didn't reveal very much information, mostly related to file uploads or downloads being interrupted. My pages are basically just text files with "ok" in them that only have .aspx extension for future plans, there's no actual code powering the pages. Servers are all Windows Server 2008 RC2 x64 running IIS7 / ASP.NET 4.Statistically it's happening well under 1% of the time but because of the volume of traffic that still clutters my event log with 2 or 3 of these messages per minute.Edit:tracked down the problem, setting buffering to true stopped it occurring.
View 2 RepliesI have a WCF service which has 4 Operation contracts.
I have added a new contract and it gets the data from database and returns the result set.
I can access the new contract and the service get the correct result set. But while passing the result set to the client I get the error of The underlying connection was closed: The connection was closed unexpectedly.
What are the steps to follow after adding a new contract like new binding etc.
I'm using Visual Studio 2008, and my database is SQL Server 2000.
I want to add a connection to the Server Explorer in VS. The Data source is Microsoft SQL Server (SqlClient). After entering in all my information and I click Test Connection, it is successful.
But when I click OK, I get the error:
Unable to add data connection. ExecuteScalar requires an open and available connection. The connection's current state is closed.
I have created a webservice in 2010. And when I call it from my web application sometimes,It generates the follwoing errors:-1. The underlying connection was closed: A connection that was expected to be kept alive was closed by the server.2. Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding.I have already tried increasing excutonTimeOut etc.
View 2 RepliesThis error stopping my work in my crucial time. The error is "The underlying connection was closed: The connection was closed unexpectedly.".There are multiple WCF service I created in my project. But when I am requesting only one service this error is coming. I compare with other service, no difference. The service works fine in the morning, but afternoon it stops working and raising error.
I installed Silverlight 3.0 Tools for 2008 Sp1, Silverlight 3.0 Developer, WCF RIA Beta and Silverlight 4.0 runtime in my system in the morning. After getting this error I uninstalled WCF RIA Beta. But same issue.Could not find any solution. Please assist me how to solve this issue.
I'm receiving the following error occasionally when calling web service using a .NET 4.0 web application."The underlying connection was closed: An unexpected error occurred on a send."All of the articles I've read regarding this issue are for the Framework 1.1.Is there any solution to this issue for using .NET framework 4.0?
View 1 RepliesI am consuming a third party web service wsdl using my .net aps.net page. And I am getting following error message. Cannt get to resolve it. Its working on my machine but not in my development machine. I have installed the certificate also in certificates on that machine.
Error --> The underlying connection was closed: An unexpected error occurred on a send.
I have my wcf service and it runs fine. Then from my asp.net application I am trying to connect to this service. Everything is ok, request from asp.net is received in service (as I can debug code) and then when it returns to client I have the following error:underlying connection was closed: The connection was closed unexpectedlyMy contract on WCF service is as follows:
[OperationContract()]
WCFResponseGetAllProducts GetAllProducts(WCFRequestGetAllProducts request);
And WCFResponseGetAllProducts , WCFRequestGetAllProducts classes have [DataContract] attributes. Members of those classes have [DataMember] attribute. However when I added another method to my contract:
[OperationContract()]
int Test();
then I can execute it from asp.net mvc application without a problem.
PS. I host my wcf service in default web server in visual studio 2010 at the moment
I can not send mail, this error means ?
Code:
using (MailMessage mm = new MailMessage("soporte@linknred.com", correo1.Text.Trim()))
{
mm.Subject = "Activacion de Cuenta";
string body = "Hola " + correo1.Text.Trim() + ", " + "Bienvenido a LinknRed";
body += "<br /><br />Por Favor haz Click en el Enlace Siguiente Para Activar Tu Cuenta";
[Code] ....
How to fix this error,
"The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.5.1 Authentication Required. Learn more at"
[URL].....
I have my code here, it works fine from my home, where my user is administrator, and I am connected to internet via a cable network.
But, problem is when I try this code from my work place, it does not work. Shows error:
"unable to connect to the remote server"
From a different machine in the same network:
"A socket operation was attempted to an unreachable network 209.xxx.xx.52:25"
I checked with our network admin, and he assured me that all the mail ports are open [25,110, and other ports for gmail].
Then, I logged in with administrative privilege, there was a little improvement, it did not show any error, but the actual email was never received.
note that, the code was tested from development environment, visual studio 2005 and 2008.
try
{
MailMessage mail_message = new MailMessage("xxxxx@y7mail.com", txtToEmail.Text, txtSubject.Text, txtBody.Text);
SmtpClient mail_client = new SmtpClient("SMTP.y7mail.com");
NetworkCredential Authentic = new NetworkCredential("xxxxx@y7mail.com", "xxxxx");
mail_client.UseDefaultCredentials = true;......
Im working with this Arquitecture : Web Service -> DLL(Xml Translator) -> Asp.net.Everything works fine, but,i have a process that takes about 23 minutes, in that time i show a "loading screen" that avoid the user to do anything, but after 20 mins while the web service is working and after debug my code, i get this error :
"The underlying connection was closed: The connection was closed unexpectedly"
Then, my "loading screen" keep visible until the web service completes the work, and after that, the "loading" hides and the web form shows my gridview empty.(its should show data).
When I first published my site, I tested it using my gmail account and worked like a charm first try (a rare feat for me ;) ). Now, I'd like to finish it up by having it send the emails from the account at the host. No joy... I asked the host if I had misunderstood the rather unhelpful info in the control panel and they advised that in my web config I should change:
[code]....
I want to send email thought asp.net page for that I need to find SMTP Host and port number below is my code
Dim EMail As New MailMessage
EMail.From = New MailAddress(Emailtaxebox.Text)
EMail.[To].Add(New MailAddress("sa@gmail.com"))
EMail.Subject = Firstnametextbox.Text + lastnametextbox.Text + "Registerd"
EMail.Body = " This is content "
EMail.IsBodyHtml = True
[code]....
how to find SMTP port and host name ? I used default one its gives me error.No connection could be made because the target machine actively refused it.
Is there a way to check smtp host status in ASP.NET.
View 1 Repliesi have a web application in which i have a emailing module. in which i am currently using gmail smtp host but i need to allow any or all smtp host account to be used for sending emails like yahoo , hotmail etc.
for sending a mail i need to have port no , .Host, and .EnableSsl there r many many smtp host used for emailing . how do i configure my emailing modue to accomodate all the possible smtp host and set their host , port & enable ss1 so that any one using the emailing module can set their smtp host and use the module for emailing
I heve been sent some code as an example (BELOW in C#) with a login password, to request data from a remote site.
For example: A customer is givn a code from a remote site that contains his data. the customer then arrives at my site enterst the code on my sites form the script access the data from the remote site.
e.g. A customer enter my site > enters code> collects data from remote server> displays on my site> proceeds to checkout on my site.
I have no idea how to do this from the code example.
Code:using System;
using System.Collections.Generic;
using System.Text;
using System.Xml;
[Code]....
i have a website that accepts files from users.
the site currently save all files to a local directory (~/Data/<Date>), which can be accessed via [URL](Public server)
however to increase performance i need to save the file to a remote http host. ex [URL] (different public server)
i have ftp access to all my public server.
i'm just confused as to which is the most secure way to upload the files from codebehind.
FTP or HTTP Post.
the <date> section of the URL is dynamicall generate using Directory.CreateDirectory(Server.MapPath("<year><month><day>");
In my asp.net +vb+access web i have made a login page and the code is as under
Dim connectString As String = "Provider=Microsoft.Jet.OLEDB.4.0;" & _
"Data Source=C:webauth.mdb"
Dim con As OleDbConnection = New OleDbConnection(connectString)
con.Open()
Dim cmd As New OleDbCommand("select * from Users where userid =@userid and Password=@password", con)
cmd.Parameters.AddWithValue("@userid", txtUserName.Text)
[Code] ....
I am getting error The connection was not closed. The connection's current state is open.
In Visual Studio 2005 I am following the steps to add a Web Reference to a web service.hings appear to go smoothly except for an error messae I am getting. Here are thesteps I follow along with the result.1. Right click on Web References folder and select "Add Web Reference..."2. When the dialog box appears I add the web service URL into the URL dialog box.The web service methods are then displayed in the dialog box with the links to each web service and a prompt to "Start Browsing for Web Service"However in the box to the right which is labeled "Web services found at this URL", there is an error messagewhich reads:There was an error downloading 'https://stage-serv/weatherQuote/WebService/weatherQuote.asmx
The underlying connection was closed: An unexpected error occurred on asend.Authentication failed because the remote party has closed the transport stream.I don't know what is causing this problem. I can reference this same web service on a productionserver just fine, but if I attempt to access it on the stagig server I get the message Ijust talked about.I am thinking that something is not configured on the staging server correctly.
I am created a from sending mails. I have tried ur code.. But I am getting under error.
The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.5.1 Authentication Required
Suppose say I am doing a couple of operations.
First a delete and then an insert.
Now, these two operations are done with two different connections (say con1 and con2). Both these connections are enlisted in the same TransactionScope.
Before the delete/insert operations the connections are opened and immediately closed.
So, now if the insert fails, then how is the delete rollbacked since con1 has been closed?
I have a Silverlight 3 application. It accesses WCF services that run on IIS. If I let the application sit for a while with no activity, it appears that I lose my connection to the server/login authentication, and my service calls fail.
It would appear that I am being logged out for security purposes, but this is not an area that I understand well. We are using a federated STS to create an encrypted token for security.
Can someone explain what is happening (if my description is clear enought), and how can I detect this event in my Silverlight application and redirect them back to the login page.