Reply

ptjoe

Member

315 Points

63 Posts

Unable to read data from the transport connection: net_io_connectionclosed

Oct 03, 2005 05:27 PM|LINK

I added arecovery password to the default page, when i try to recover the password i get this error message

Server Error in '/WebSite1' Application.

Unable to read data from the transport connection: net_io_connectionclosed.

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.IO.IOException: Unable to read data from the transport connection: net_io_connectionclosed.

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:

[IOException: Unable to read data from the transport connection: net_io_connectionclosed.]
   System.Net.Mail.SmtpReplyStreamFactory.ProcessRead(Byte[] buffer, Int32 offset, Int32 read, Boolean readLine) +223
   System.Net.Mail.SmtpReplyStreamFactory.ReadLines(SmtpReplyStream caller, Boolean oneLine) +303
   System.Net.Mail.SmtpReplyStreamFactory.ReadLine(SmtpReplyStream caller) +53
   System.Net.Mail.SmtpReplyStream.ReadLine() +47
   System.Net.Mail.SmtpConnection.GetConnection(String host, Int32 port) +1027
   System.Net.Mail.SmtpTransport.GetConnection(String host, Int32 port) +287
   System.Net.Mail.SmtpClient.GetConnection() +56
   System.Net.Mail.SmtpClient.Send(MailMessage message) +1664

[SmtpException: Failure sending mail.]
   System.Net.Mail.SmtpClient.Send(MailMessage message) +2171
   System.Web.UI.Util.SendMail(MailMessage message) +54
   System.Web.UI.WebControls.PasswordRecovery.SendMail(String to, String userName, String password) +415
   System.Web.UI.WebControls.PasswordRecovery.AttemptSendPasswordQuestionView() +603
   System.Web.UI.WebControls.PasswordRecovery.AttemptSendPassword() +93
   System.Web.UI.WebControls.PasswordRecovery.OnBubbleEvent(Object source, EventArgs e) +135
   System.Web.UI.Control.RaiseBubbleEvent(Object source, EventArgs args) +56
   System.Web.UI.WebControls.Button.OnCommand(CommandEventArgs e) +107
   System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) +163
   System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +31
   System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +32
   System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +72
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3871

Version Information: Microsoft .NET Framework Version:2.0.50215.44; ASP.NET Version:2.0.50215.44
any clues ?

Joao

Locked by Mikesdotnetting on Apr 07, 2010 12:58 PM

Reply

mike123

Contributor

2068 Points

728 Posts

Re: Unable to read data from the transport connection: net_io_connectionclosed

Nov 11, 2005 07:42 AM|LINK

I'm having this problem too .. did you find a solution?

Thanks!
mike123

Reply

Juan T. Llib...

Participant

848 Points

249 Posts

MVP

Re: Unable to read data from the transport connection: net_io_connectionclosed

Feb 15, 2006 11:40 AM|LINK

What this error means is that System.net.mail was unable to find the smtp server.

The answer will vary depending on whether you have a fixed IP or a dynamic IP but,
basically, you need to assign a valid IP to your smtp server.

With fixed IP's this is relatively straightforward.
With dynamic IP's it takes a bit of tweaking.

Open the IIS Manager and check the properties for the smtp server.

In the Default SMTP Virtual Server's properties, in the "Access" tab,
in the Connection Control and Relay dialogs, make sure that your local IP is assigned.
( In my case, it's 10.0.0.2... )

You may also need to modify your hosts file, to point 127.0.0.1 to your machine name.
( \WINDOWS\system32\drivers\etc\hosts )

Then, in your code, assign your machine name to the smtp client :

Dim client As New SmtpClient("yourmachinename")
client.Send(mail)

Juan T. Llibre, ASP.NET MVP (1997-2009)

Edited by Juan T. Llibre on Feb 15, 2006 11:40 AM
Edited by Juan T. Llibre on Feb 15, 2006 11:41 AM

Reply

rvidal

Member

7 Points

8 Posts

Re: Unable to read data from the transport connection: net_io_connectionclosed

Jun 22, 2007 01:53 PM|LINK

I haven't found a solution yet.

when i find it,i'll let you know.

Ray

Reply

rvidal

Member

7 Points

8 Posts

Re: Unable to read data from the transport connection: net_io_connectionclosed

Jun 22, 2007 03:04 PM|LINK

Hi,it's me again,i did what you told me and i overcame the former message,

In my code i assigned my machine name as administrator/Computos8,you know the username and machine name.

and now i get the following message.

The remote name could not be resolved: 'administrator/Computos8.

Thank you.

Ray

Reply

rvidal

Member

7 Points

8 Posts

Re: Unable to read data from the transport connection: net_io_connectionclosed

Jun 22, 2007 05:14 PM|LINK

Unable to read data from the transport connection: net_io_connectionclosed

What this error means is that System.net.mail was unable to find the smtp server.

The answer will vary depending on whether you have a fixed IP or a dynamic IP but,
basically, you need to assign a valid IP to your smtp server.

With fixed IP's this is relatively straightforward.
With dynamic IP's it takes a bit of tweaking.

Open the IIS Manager and check the properties for the smtp server.

In the Default SMTP Virtual Server's properties, in the "Access" tab,
in the Connection Control and Relay dialogs, make sure that your local IP is assigned.
( In my case, it's 10.0.0.2... )

You may also need to modify your hosts file, to point 127.0.0.1 to your machine name.
( \WINDOWS\system32\drivers\etc\hosts )

Then, in your code, assign your machine name to the smtp client :

Dim client As New SmtpClient("yourmachinename")
client.Send(mail)

Reply

gdl

Member

533 Points

119 Posts

Re: Unable to read data from the transport connection: net_io_connectionclosed

Aug 18, 2007 05:51 AM|LINK

The error usually happens when the smtp server does not recognize the email address in the "from" field. Make sure you set the "from" with an email address that actualy exists in your smtp server.

See code below for an example, note how the email server used in the email of the "from" field is the same as the one specified as the smtp server:

Dim from As String = "me@youremailserver.com"

Dim recipientEmail As String = "someone@someamailserver.com"

Dim m As New MailMessage(from, recipientEmail)

m.Subject = subject

m.Body = message & sb.ToString

Dim client As New SmtpClient("youremailserver.com")

client.Send(m)

Ricardo D. Sanchez
Palo Software
Website: http://palosoftware.com
Blog: http://ricardodsanchez.com
Twitter: @ricardodsanchez
Please remember to click "Mark as Answer" on this post if it helped you.

Reply

srkrishnakum...

Member

6 Points

7 Posts

Re: Unable to read data from the transport connection: net_io_connectionclosed

Aug 29, 2007 11:58 AM|LINK

hi i am also facing the same problem

i am using the password recovery control in my aspx page

My Web.config

<?xml version="1.0"?>

</connectionStrings>

<system.web>

</pages>

</assemblies>

</compilation>

</authentication>

<add connectionStringName="defaultConnectionString" applicationName="/JobSiteStarterKit"

description="" requiresUniqueEmail="true" enablePasswordRetrieval="false" minRequiredPasswordLength="4"

minRequiredNonalphanumericCharacters="0"

enablePasswordReset="true" requiresQuestionAndAnswer="true" passwordFormat="Hashed"

name="MyProvider" type="System.Web.Security.SqlMembershipProvider, System.Web, Version=2.0.3500.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"/>

</providers>

</membership>

</system.web>

<system.net>

</smtp>

</mailSettings>

</system.net>

</appSettings>

</configuration>

VITWS-10 is my server.. please help me..

Reply

thduttonuk

Member

8 Points

6 Posts

Re: Unable to read data from the transport connection: net_io_connectionclosed

Nov 20, 2007 12:14 PM|LINK

This is an SMTP Virtual server issue, load up IIS and

Right click Default SMTP Virtual server.
Change IP address to All Unassigned

This should work..

Tom Dutton

Reply

wickedhangov...

Member

19 Points

7 Posts

Re: Unable to read data from the transport connection: net_io_connectionclosed

Feb 17, 2008 11:50 PM|LINK

I am also getting this problem but randomnly and I cannot figure out what is going on. The IP address of the mail server is fixed. The machine running the web application does not have SMTP installed. The email addresses are valid and the email server is setup to allow the relay to take place. Any other possibilities I am not looking at?

Unable to read data from the transport connection: net_io_connectionclosed RSS

21 replies

ptjoe

Unable to read data from the transport connection: net_io_connectionclosed

Server Error in '/WebSite1' Application.

Unable to read data from the transport connection: net_io_connectionclosed.

mike123

Re: Unable to read data from the transport connection: net_io_connectionclosed

Juan T. Llib...

Re: Unable to read data from the transport connection: net_io_connectionclosed

rvidal

Re: Unable to read data from the transport connection: net_io_connectionclosed

rvidal

Re: Unable to read data from the transport connection: net_io_connectionclosed

rvidal

Re: Unable to read data from the transport connection: net_io_connectionclosed

gdl

Re: Unable to read data from the transport connection: net_io_connectionclosed

srkrishnakum...

Re: Unable to read data from the transport connection: net_io_connectionclosed

thduttonuk

Re: Unable to read data from the transport connection: net_io_connectionclosed

wickedhangov...

Re: Unable to read data from the transport connection: net_io_connectionclosed

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