SMTP Timeout Error?
Jun 11, 2011
I am using VB 2010 on a Windows 7 Home Premium PC. I can't get my my smtp code to send an email out. It always comes back with the error:"The operation has timed out"I have both a Google Mail account and a Sky Mail account both of which use the same port but can't get either to work. I have checked my firewall and the smtp port 465 is allowed and I can see the process going through the firewall.I know the mail works fine as I am using Windows Live Mail which sends and receives no problem. The code I am using is below:
Private Sub btnAddAmount_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnAddAmount.Click
Dim message As New MailMessage
[code].....
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May 3, 2011
I'm not sure if this is a VB.NET error or SQL Server. But I get the above error with following stack trace:
[SqlException (0x80131904): Timeout
expired. The timeout period elapsed
prior to completion of the operation
or the server is not responding.]
System.Data.SqlClient.SqlConnection.OnError(SqlException
[code]....
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Sep 16, 2011
I am facing error with recaptha, timeout.
I have specify all keys and just valid() calpcha function on code behind.
It waits for while and time out.
More over, When doing page.Isvalid() with capcha, it is alway false, what should be the reason?
<recaptcha:RecaptchaControl ID="recaptcha" Theme="white" runat="server" PublicKey="6LdwMMgSAAAAALdraGklD-N1Jfr5Fuxq6gyaJMy7"
PrivateKey="6LdwMMgSAAAAAKV6hOjAHdFURCUZ6oS_NmxF8iaD" />
recaptcha.Validate();
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Jun 1, 2011
I am having some problems in my app for the database timeout. Due to some network glitches the query takes more than 45 sec to return the resultset which has about 10,000 rows. Most of the time its fast upto 11-12 secs. My app is runs as a scheduled job in the background.The problem is I need to try three times if i get the timeout exception before writing the error to the error log or exiting. I know i can set the command timeout property to 60 seconds but still i want to try three times before exiting. I have written a method for that but I think there is some flaw in my method. For now i specifically set the timeout to be 5 seconds as i know well that it takes more than 25 seconds for this stored proc to run. I just want to get that timeout expired exception and write ways to handle it.
My problem is if after 2 times I set the connection timeout to 50 so my method goes and get the correct list but it again goes inside the methodname which i have called inside the catch statement and finally returns nothing. It looks like its getting into recursion or something but i am confused as to where i am wrong.[code]
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Dec 13, 2009
Sometimes when my server is down or busy, I get an error saying "connection timeout" while connecting to MySQL. But with the error the program also crashes. My question is how can I prevent crashing, it would be better to show a msgbox when this happens. (visual basic 2010)here is a screenshot of the error
I use this,
Dim connStr As String = "Database=mydatabase;" & _
"Data Source=datasrc;" & _
[code].....
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Jan 20, 2011
why I am getting this error from a simple stored procedure that I created in SQL Server 2008 R2. I am trying to obtain data and insert it into a temporary table. if it is a timeout issue, how can I increase the timeout length to 420 seconds. to my understanding the timeout is good for only 30 seconds.
this is the error in its entirety:
Server Error in '/WebSite9' Application.
Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding. 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: Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding.
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.
[Code].....
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Aug 14, 2009
I'm using the TcpClient and TcpListener classes to read/write to the network when a request comes in on port 25. All I'm trying to do at the moment is make it so that my server program can receive SMTP messages from other SMTP servers. I've tested in Telnet - if I connect to my own IP on port 25 and type EHLO, MAIL FROM, RCPT TO, DATA etc then all works as it should and the details I entered are logged by the program (it doesnt do anything about delivering these details/email yet).all looks good... but then when I try and just send an email to my domain from my work account I can see that a connection is made to my program and the string "EHLO workdomain.com " is received by my program - my program responds to the remote SMTP server with "250-mydomain.com Hello" and then a CrLF and then "250-OK". After that point however, my app does not receive anything further at all from the server at work. I'm guessing I am doing something wrong with the data I'm returning when it sends EHLO but can anyone point me in the correct direction?
I was using telnet to test with, it seems that I have made it work only with telnet.In telnet each time I type a key the data is passed to the server, however with a real SMTP server it just sends each entire command in one go. So after altering my server a little I can now get it to respond with the 250-OK which I thought it already was doing.. but it still doesnt work. The remote server just sends EHLO and then thats it nothing more.Something interesting, at the moment I am ending all of my responses to the remote server with VbLf - if I change this to VbCrLf (which is what I believe it is meant to be according to the SMTP standard) then I get an infinite amount of empty strings sent to my program (or perhaps some other character that just shows as an empty string in intellisense when stepping through the code). Changing it back to just vbLf or ControlChars.Lf makes it go back to just sending EHLO and then nothing else..
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Apr 23, 2010
When calling a stored procedure from vb.net is there a default SQL timeout time if no timeout is specified in the connection string?I am unsure if there is a CommandTimeout specified in the connection string but am going through all the possibilites.
Example if no results after 30 seconds (or more) throw:
`System.Data.SqlClient.SqlException: Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding.`SQL Profiler says that the script runs and ends in 30 seconds when the program timesout..Tthe script runs without error in about 1 minute 45 seconds by itself in SQL server.
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Jan 28, 2011
I am trying to create a grid view in visual studio by connecting to a server and using a stored procedure. I am getting a time out error when I test it out. Can someone advise me as to what I can do? The query itself takes about 7 minutes to complete. The data is stored in a table. What can I do to extend the timeout?[code]...
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Jun 28, 2011
developing SMTP mail program which require user to enter uid and password for their yahoo , gmail , hotmail account and then send the mail to required email address..following is the code , sometimes it says operation timed out , while sometimes it says that operation failed.
Imports System.Net
Imports System.Net.Mail
[code]....
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Jun 8, 2011
I am getting an error while fetching the records from sql server to datagridview. Ex. I have 10 rows in datagridview first five are with one table and next five for another table. When loop goes for next table it throws an error like "timeout expired. the timeout period elapsed prior to completion of the operation or the server is not responding. The statement has been terminated."
for (int h = 0; h <= dtgqueformat.RowCount - 2; h++)
{
string avl_subject = dtgqueformat[8, h].Value.ToString();
string avl_chapter = dtgqueformat[9, h].Value.ToString();
[code]....
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Jul 21, 2010
I am working on uses the ThreadPool class and specifically the QueueUserWorkItem method to launch its background tasks. I am however having an issue related to SqlConnection timeouts. My error is this: "Timeout expired. The timeout period elapsed prior to obtaining a connection from the pool. This may have occurred because all pooled connections were in use and max pool size was reached."
This code is using all available ThreadPool threads because it is processing nearly 100,000 items, each on a threadpool thread, and updating an SQL database. So my question is this? Has anyone ran into a similar problem or could shed some light on a resolution to this issue? In testing, if I use the threadpool. setmaxthreads function and give it a value of 100 (to match the default Sql connection pooling count) then all runs just fine, but much to slow to process this much data.
[Code]
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Jan 15, 2012
I'm trying to send emails using smtp and getting an error This is my code :
Imports System.Net.Mail
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[code].....
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Feb 14, 2012
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim mail As New MailMessage
[Code]....
The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.5.1 Authentication Required
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Oct 25, 2009
When i add an attachment to my email and click send i get an error.
Error : smtp exception was unhandled
Line : SmtpServer.Send(mail)
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
[code]....
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Feb 19, 2009
I am trying to get this program to send an email, but still no luck. I am getting the following error that I do not understand. I do not understand what I am doing wrong. Also, I may have an issue that the computer I am writing this code on and trying to send the message does not have ISS and is just windows XP home.
The error is below
System.Net.Mail.SmtpException was unhandled
Message="The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.7.0 Must issue a STARTTLS command first. k41sm2133530rvb.6"
[code].....
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May 19, 2010
My application requires a user to log in and allows them to edit a list of things. However, it seems that if the same user always logs in and out and edits the list, this user will run into a "System.Data.SqlClient.SqlException: Timeout expired." error. I've read a comment about it possibly caused by uncommitted transactions. And I do have one going in the application.
[Code]...
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May 31, 2011
I have the following portion of code on a Click Event on my page:
Dim ts As New ThreadStart(AddressOf SendEmails)
Dim t As New Thread(ts)
t.IsBackground = True
[code].....
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Dec 9, 2009
The following is my connectionstring: server=(local);database=JnJ3;uid=sa;pwd=sa May I know how can I avoid timeout expired because I keep on receiving error message when deal with huge amount of data. The timeout period elapsed prior to completion of the operation or the server is not responding.
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Nov 7, 2009
I get an error on SMTP.Send(MyMailMessage) saying 'Failed to send'
My
Dim MyMailMessage As New MailMessage()
ProgressBar1.Value = 30
MyMailMessage.From = New MailAddress("MyGmailEmail")
MyMailMessage.To.Add("MyEmail")
[Code]...
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Mar 30, 2012
I'm teaching myself vb.net and found this VB.NET SMTP codeand I wanted to add a mail.cc and mail.bcc but get an error Property cc is ReadOnly.and don't know how to fix. then I found this code
Dim CC As MailAddress = New MailAddress(TextBox5.Text) 'For some reason it's required field
mail.CC.Add(CC)
[code].....
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Apr 19, 2009
I have written some code (VB.net) which simply runs a backup on all required servers and databases in a loop. The code works perfectly, except for the first backup which Timeout's after 30 seconds (even with my Connect Timeout=0).
Everything is written manually for the dataconnection, the connection opens and timeouts on SQLComm.ExecuteNonQuery()
dbConnStr= Data Source='Server';Initial Catalog='Database';Integrated Security=False;User ID=sa;Connect Timeout=0;User Instance=False
[Code]...
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Dec 16, 2011
I am using VB 2005 and need to trap a serial port timeout. I use a standard try/catch block, but if no characters arrive the code still hangs at the ReadByte call. Here is the code:
Try
SerialPort.ReadTimeout = 200
' read timeout of 200 mSecs
thisByte = SerialPort.ReadByte()
[code]....
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Jun 7, 2010
I have written a page with an iFrame that basically cycles through a series of internal pages on our server displaying daily activity for our company. The problem I think is that it sporadically loses its session and redirects back to the login screen to keep losing its session which is the default behavior for anyone on our site trying to access a webpage without being logged in.
I have set the session timeout to 4hrs, the iframe cycles through 6 pages anywhere from 10 seconds to 5 minutes on each, and I have even set the META refresh on the page to refresh every 3 hours. I don't understand what else could possibly stop this page from staying active.
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Sep 2, 2010
Setting timeout on a vb.net webservice.
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Jun 4, 2009
I have to increase timeout period.Following is my code.
Private Function GetConnectionInstance() As SqlConnection
Dim objConn As SqlConnection
Dim strConnection As String
strConnection = ConfigurationSettings.AppSettings("conn")
[code]....
What code i have to add in above to increase timeout period.
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Jun 21, 2010
In this situation, my application can connect to the MSSQL server in one of two ways; via a direct TCP/IP connection (WAN) (IP's filtered using RRAS in 2003 Server) or via a VPN connection. The application will first try to open the connection using the WAN connection string and if it can't, then it tries using the VPN connection string. My issue is, I set the connection timeout to 5 seconds for the first attempt but it's taking way longer than that to return an exception. The order in which I attempt to open the connection doesn't really matter. I have looked at the ConnectionTimeout property after changing the connection string and it does indeed show 5 seconds. It appears that the connection timeout value is being ignored.
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May 25, 2010
We got a legacy vb.net applicaction that was working for years. But all of a sudden it stops working yesterday and gives sql server timeout.
Most part of application gives time out error , one part for example is below code :
CODE:
It was working and now gives time out in command3.ExecuteNonQuery()
Some information : There isnt anything that has been changed on network and the app uses local database. The main issue is that even in development environment it donest work anymore
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Jul 17, 2009
am using vb.net 2008 and sql server 2008. I have a search form and when i search at times, I have "Connection Timeout Expired" error.I dispose and close the connection after establishment, but i still get it. tried setting MyConObj.ConnectionTimeout = 0 and it also gives me "Property ConnectionTimeout is ReadOnly.
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Dec 30, 2010
I am looking for the VB.NET code of a very handy little *.bas file I used to use in Visual Basic 6. The file was called timeout.bas and it was the greatest module ever to me. I want to switch to start using VB.NET finally but this single file is holding me back. Trying to use .NET without it is like crippling me. [code]
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