Error creating Web proxy

Question

Error creating Web proxy

I have a CLR enabled .NET app that accesses a webservice and writes an xml file to a webserver for a SQLServer SSIS package to digest. Everything works fine on the development servers, but the production server returns the following error:

Error creating the Web Proxy specified in the 'system.net/defaultProxy' configuration section.: at System.Net.Configuration.DefaultProxySectionInternal.GetSection() at System.Net.WebRequest.get_InternalDefaultWebProxy() at System.Net.HttpWebRequest..ctor(Uri uri, ServicePoint servicePoint) at System.Net.HttpRequestCreator.Create(Uri Uri) at System.Net.WebRequest.Create(Uri requestUri, Boolean useUriBase) at System.Web.Services.Protocols.WebClientProtocol.GetWebRequest(Uri uri) at System.Web.Services.Protocols.HttpWebClientProtocol.GetWebRequest(Uri uri) at System.Web.Services.Protocols.SoapHttpClientProtocol.GetWebRequest(Uri uri) at System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke(String methodName, Object[] parameters) at MyDBProj.com.dmsintegration.secure.VehicleInventoryService.RetriveVehicleInventory(RetrieveAllRecordsRequest request) at UserDefinedFunctions.LoadDMSFile(String dealer_id, String dms_username, String dms_password, String dms_location_id)

There are no differences between the server OS versions or the SQLServer versions. We are using Windows Server 2003 R2 and SQL Server 2005. I believe it must be a configuration on the server itself but I cannot find any differences between the servers. Neither server runs a software firewall.

Full Exception:

System.Configuration.ConfigurationErrorsException: Error creating the Web Proxy specified in the 'system.net/defaultProxy' configuration section. ---> System.DllNotFoundException: Unable to load DLL 'rasapi32.dll': A dynamic link library (DLL) initialization routine failed. (Exception from HRESULT: 0x8007045A)
at System.Net.UnsafeNclNativeMethods.RasHelper.RasEnumConnections(RASCONN[] lprasconn, UInt32& lpcb, UInt32& lpcConnections) at System.Net.UnsafeNclNativeMethods.RasHelper.GetCurrentConnectoid() at System.Net.AutoWebProxyScriptEngine.AutoDetector.Initialize() at System.Net.AutoWebProxyScriptEngine..ctor(WebProxy proxy, Boolean useRegistry) at System.Net.WebProxy.UnsafeUpdateFromRegistry() at System.Net.Configuration.DefaultProxySectionInternal..ctor(DefaultProxySection section) at System.Net.Configuration.DefaultProxySectionInternal.GetSection() --- End of inner exception stack trace --- at System.Net.Configuration.DefaultProxySectionInternal.GetSection() at System.Net.WebRequest.get_InternalDefaultWebProxy() at System.Net.HttpWebRequest..ctor(Uri uri, ServicePoint servicePoint) at System.Net.HttpRequestCreator.Create(Uri Uri) at System.Net.WebRequest.Create(Uri requestUri, Boolean useUriBase) at System.Web.Services.Protocols.WebClientProtocol.GetWebRequest(Uri uri) at System.Web.Services.Protocols.HttpWebClientProtocol.GetWebRequest(Uri uri) at System.Web.Services.Protocols.SoapHttpClientProtocol.GetWebRequest(Uri uri) at System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke(String methodName, Object[] parameters) at MyDBProj.com.dmsintegration.secure.VehicleInventoryService.RetriveVehicleInventory(RetrieveAllRecordsRequest request) at UserDefinedFunctions.LoadDMSFile(String dealer_id, String dms_username, String dms_password, String dms_location_id)

.net

clr

webproxy

asked on Stack Overflow Jul 21, 2009 by

James • edited Mar 13, 2013 by

JJJ

4 Answers

We had exactly the same error message when calling a Web service from a .Net Winform application.

In our case the error occurred for one user, but not for the other (with local admin permissions) on the same server.

In fact it has nothing to with WCF; you would have the same error when calling a simple web page from your app. The executing user account is not allowed to open a Web Proxy connection.

We solved the problem by moving the application into C:\Program Files. For a reason I can't yet explain exactly, from this folder the same user can create the Proxy.

Any insight on this would be welcome.

answered on Stack Overflow Feb 14, 2012 by

flip

we had faced the same issue. eror creating the Web Proxy specified in the 'system.net/defaultProxy' configuration section.

I resolved it by correcting the incorrect entries in config files in website.Just make sure that all tags are opned and closed correctly.it may reosolve your issue.

answered on Stack Overflow Jan 1, 2015 by

SHIBIN • edited Jan 18, 2018 by

SHIBIN

James, look closely:

Error creating the Web Proxy specified in the 'system.net/defaultProxy' configuration section

answered on Stack Overflow Jul 21, 2009 by

John Saunders

This error happened to me when attempting to access Source Server from WinDBG. I was referencing TF.EXE in the C:\Program Files (x86)\Microsoft Visual Studio 10.0\Common7\IDE\ folder from my srcsrv.ini file.

I made a copy of tf.exe / tf.exe.config and placed it in the folder with WinDBG, and it worked fine.

It turned out that an earlier download of symbols from the Microsoft Symbol Store had put folders winhttp.dll, etc., in the C:\Program Files (x86)\Microsoft Visual Studio 10.0\Common7\IDE folder, and those were being read. That made tf.exe unable to find and load those dlls. What should have happened is that tf.exe did not find them there, but instead loaded them from the c:\Windows\Syswow64 folder.

Process Monitor from SysInternals is your friend!

answered on Stack Overflow Jun 18, 2013 by

user2497900 • edited Jun 18, 2013 by

Nalaka526

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