Microsoft KB Archive/886388

= You may receive a &quot;Failure to connect to Web server&quot; error message when you browse local Web applications or you connect to an existing ASP.NET Web application in Visual Studio .NET 2003 =

Article ID: 886388

Article Last Modified on 10/12/2004

-

APPLIES TO


 * Microsoft ASP.NET 1.1

-



Symptom 1
When you use Microsoft Internet Explorer to visit a Microsoft Internet Information Services (IIS) Web site and you are logged on to the computer that is running IIS, you may receive the following error message:

Failure To Connect To Web Server

Symptom 2
When you use Internet Explorer to browse http://localhost, you may receive the following error message:

Failure To Connect To Web Server

Symptom 3
When you try to open an existing Microsoft Visual Studio .NET 2003 project, you may receive the following error message:

http/1.0 506 failure to connect to web server

Symptom 4
When you try to open an existing Visual Studio .NET 2003 project and you have a satellite connection, you may receive both of the following error messages:

http/1.0 506 failure to connect to web server

http/1.0 504 suspected satellite outage



CAUSE
These problems can occur because one or both of the following conditions are true:
 * The proxy server does not allow connections to local addresses.
 * Internet Explorer is using the wrong proxy settings or invalid proxy settings.



RESOLUTION
To resolve these problems, use one of the following methods, depending on your symptom.

Method 1: Symptom 1
In Internet Explorer, turn off Automatically detect settings. To do this, follow these steps:
 * 1) Start Internet Explorer.
 * 2) In Internet Explorer, click Tools, and then click Internet Options.
 * 3) In the Internet Options dialog box, click the Connections tab, and then click LAN Settings.
 * 4) In the Local Area Network (LAN) Settings dialog box, click to clear the Automatically detect settings check box, and then click OK.
 * 5) Click OK.

Method 2: Symptom 2
In Internet Explorer, turn on Automatically detect settings, and then turn off the proxy server. To do this, follow these steps:
 * 1) Start Internet Explorer.
 * 2) In Internet Explorer, click Tools, and then click Internet Options.
 * 3) In the Internet Options dialog box, click the Connections tab, and then click Lan Settings.
 * 4) In the Local Area Network (LAN) Settings dialog box, click to select the Automatically detect settings check box.
 * 5) Click to clear the Use a proxy server for your LAN check box, and then click OK.
 * 6) Click OK.

Method 3: Symptom 3 and symptom 4
In Internet Explorer, turn on Bypass proxy server for local addresses. To do this, follow these steps:
 * 1) Start Internet Explorer.
 * 2) In Internet Explorer, click Tools, and then click Internet Options.
 * 3) In the Internet Options dialog box, click the Connections tab, and then click Lan Settings.
 * 4) In the Local Area Network (LAN) Settings dialog box, click to select the Bypass proxy server for local addresses check box, and then click OK.
 * 5) Click OK.



MORE INFORMATION
If you try to create a new Visual Studio .NET 2003 project while this problem occurs, the IDE may unexpectedly stop responding because the IDE makes a request to http://localhost.

Keywords: kbtshoot kbprb KB886388

-

[mailto:TECHNET@MICROSOFT.COM Send feedback to Microsoft]

© Microsoft Corporation. All rights reserved.