C# - Unable To Connect To The Remote Server From Windows Service
Nov 9, 2010
I have got this error
Unable to connect to the remote server
when I call the web service from the windows service. But I can visit this web service through IE and I also wrote another console application to call the web service and it works fine, too.
The exception infomation is below:
A socket operation was attempted to an unreachable network 127.0.0.1:8888
Here is my code:
WebImageSVC webSvc = new WebImageSVC();
ConfigManager.LoadConfigManager();
webSvc.Url = ConfigManager.WebSvcAddress;
webSvc.Proxy = null;
webSvc.CanUpload(0, "");
I try many methods, like turn off the firewall and anti-virus software, set the web services proxy property to null. but still cannot solve this issue.
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Jul 13, 2010
I am working on a project where one of the requirements is to re-write an ASP.NET application. The old ASP.NET application was based on .NET Framework 1.1. The new ASP.NET application is based on .NET Framework 3.5.
One of the functions in the old web application was the ability to send email. The old code used the System.Web.Mail.SmtpMail class, whereas the new web application uses the System.Net.Mail.SmtpClient class.
In testing this on our development servers, everything worked fine. However, we have two beta clients testing out our software, and they both run into problems sending email in the new web application.
The specific exception is as follows:
"Unable to connect to the remote server ---> System.Net.Sockets.SocketException: No connection could be made because the target machine actively refused it"
Both the old and new ASP.NET application are on the same server (Windows Server 2003). They both are using the same Exchange mail server. Why is it that the old ASP.NET application can successfully send email, but the new one cannot?
I looked at the old code, and it did not use any form of authentication, it just specified the sender's email address, the recipient's email address, the subject, body, and server, and sent the message. I did the same thing in the new code, with the only difference being that I used the SmtpClient class.
Below is a code snippet from the new ASP.NET application:
System.Net.Mail.MailMessage mail = new System.Net.Mail.MailMessage();
mail.To.Add(messageTo);
mail.From = new MailAddress(messageFrom);
mail.Subject = messageSubject;
mail.Body = messageBody;
SmtpClient client = new SmtpClient();
client.Host = smtpServer;
client.Send(mail);
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Jan 19, 2011
I have created my asp.net website using database ASPNETDB.MDF but when I try to host my site on server ...
The SQL Server 2005 hosting provider issue me the
database name dobriyalji
server ip : 69.112.222.220
database username : XXXX
database password : XXXX
I have imported all of my ASPNETDB.MDF tables to my server database dobriyalji ...
And I empty the Appdata.mdf and aspnetdb.log file from App_Data Folder ...
When I try to run my site the following error occurs ...
An attempt to attach an auto-named database for file UsersAshish DobriyalDocumentsVisual Studio 2008WebSitesVOLVOApp_DataASPNETDB.MDF
failed. A database with the same name exists, or specified file cannot be opened, or it is located on UNC share.
MY LOCALHOST CONNECTION STRING :
<connectionStrings>
<add name="ConnectionString" connectionString="Data Source=.SQLEXPRESS;AttachDbFilename=|DataDirectory|ASPNETDB.MDF;Integrated Security=True;User Instance=True" providerName="System.Data.SqlClient"/>
</connectionStrings>
MY REMOTE HOST CONNECTION STRING :
<connectionStrings>
<add name="vbi_india2kConnectionString" connectionString="Data Source=69.112.222.220;Initial Catalog=dobriyalji;Persist Security Info=True;User ID=XXXX;Password=XXXX" providerName="System.Data.SqlClient"/>
</connectionStrings>
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May 27, 2010
I tried this code by inputting the ftp address as ftp//: and the correct username and password and I get the following error
"Unable to connect to the remote server" on line :
FtpWebResponse Response = (FtpWebResponse)Request.GetResponse();I tired this on my ftp server provided by a hosting service and an anonymous ftp located at 193.166.120.5 ?
Note: I was able to connect to both of these ftp through filezilla, via a webbrowser, and through windows command line.
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Mar 6, 2011
My site sends confirmation emails from a purchase. 95% of the time, it works. The other 5% after clicking the 'Confirm' button that runs the payment and should send the email, i get the following exception:
Details:
Exception: Failure sending mail.
Inner Exception: Unable to connect to the remote server
Inner Exception(2): 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 72.167.234.197:25
The code to send the email is this:
Dim smtpClientPayPalSuccess As System.Net.Mail.SmtpClient = New System.Net.Mail.SmtpClient()
smtpClientPayPalSuccess.Host = "relay-hosting.secureserver.net"
smtpClientPayPalSuccess.Send(mailMessagePayPalSuccess)
FYI: I have confirmed with the hosting that I don't need any credentials, or a different port number than 25. This is also running over https. why this would be happening only a small percentage of the time?
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Apr 1, 2010
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;......
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Aug 9, 2010
I have a problem, my database reside on a separate server and my online website need to access that server to get some data. The server is in my office and connected with Internet.
I have configure the SQL server 2005 on the server to allow remote connections. Enabled TCP/IP and named pipeline. The port is 1433.
I give following connectionstrings.
1. <add name="DatabaseConnectionString" connectionString="Data Source=nt1111;Initial Catalog=testdatabase;Persist Security Info=True;User ID=test;Password=***" providerName="System.Data.SqlClient"/>
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Mar 2, 2010
I had this one working a while back i try to upload file to my root folder it works locally but when i try it from my website i get the following error: exception details: system.bet .webexception. unable to connect to the remote server
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fileStream = File.Open(localFile, FileMode.Open)
[code]....
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Aug 24, 2010
about "Unable to connect to remote server." using HttpWebRequest?
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Aug 3, 2010
When i try to execute the code below i get the error "unable to connect to remote server".
The internet connection is set and if i copy and paste the serviceurl directly on the browser it works.
public string GeoCode(string address)
{
if (String.IsNullOrEmpty(address)) throw new ArgumentNullException("address");
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string url = String.Format(ServiceUrl, HttpUtility.UrlEncode(address), MyApiKey);
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request.Method = "GET";
using (System.Net.WebResponse response = request.GetResponse())
{
return response.ToString();
}
}
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Dec 20, 2010
how to access remote computer windows service using asp.net
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[code]....
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[code]....
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Jan 18, 2011
I have a following details provided by our mssql2005 database provider
Server IP : 100.20.255.34
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User: nas0
password : ymkv45SEv
i have the following connectionstring in my web.config file in my offline site as :
<add name="ConnectionString" connectionString="Data Source=.SQLEXPRESS;AttachDbFilename=|DataDirectory|ASPNETDB.MDF;Integrated Security=True;User Instance=True" providerName="System.Data.SqlClient"/>
I want
how to edit my web.config connection string mentioned above using the details provided above so that it connect to my MSSQl2005 hosting provider .... ?
I don't know how to edit connection string to do that !!
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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)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)
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In other words the webpage cannot just load data out of the MySQL database loaded on its server, but it has to connect to our server and get data.
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I have amazon cloud aws, i am developing a website in asp, i have remote RDP access to my server..
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In my mvc asp.net application,I am getting error in edit function : in given code
[Code]....
I am getting this exception:
Source : System.Data.Entity
Stack Trace : at System.Data.EntityClient.EntityCommandDefinition.ExecuteStoreCommands(EntityCommand
entityCommand, CommandBehavior behavior) at
System.Data.Objects.Internal.ObjectQueryExecutionPlan.Execute[TResultType](ObjectContext
context, ObjectParameterCollection
parameterValues) at
System.Data.Objects.ObjectQuery
[Code]....
1 forMergeOption) at System.Data.Objects.ObjectQuery
[Code]....
1 source) at
System.Data.Objects.ELinq.ObjectQueryProvider.b__0[TResult](IEnumerable
[Code]....
1 query, Expression queryRoot) at
System.Data.Objects.ELinq.ObjectQueryProvider.System.Linq.IQueryProvider.Execute[S](Expression expression) at System.Linq.Queryable.First[TSource](IQueryable`1
source) at admin.com.Controllers.DocsGridController.Edit(Int32 id) in
c:DataFinalCodeAC015acomMVCSourceCodeadmincomControllersDocsController.cs:line
307
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