Hi, Though it seems very common error, could not able to find any solution.

Error:

Whenever i create and run any new or existing web application/service, i'm getting following error message

Unable to start debugging on the web server. The underlying connection was closed: An unexpected error occurred on a receive.

as it ate my time, finally i repaired my Visual studio 2005. now i'm getting the error

Unable to start debugging on the web server. The debug request could not be processed by the server due to invalid syntax.

Following things may be useful to give solution

1. My HTTP Keeps-alive property is disabled. I tried with enabled also.

2. Both windows and anonymous authentication are enabled for my web page

3. IIS 6 and Windows 2003 server i'm using

4. My connection timeout is 120 secs. I tried till 2000 seconds.

5. I'm trying just simple "helloworld" web service. nothing else.

could anyone helpme out?

hi

Put u r session time out to 20 mts only and try this

1.Just type in u r internet explorer http://localhost/ if it works the iis is installed  then this is the problem .

2.or first u need to install IIS then u need to install Visual Studio .NET.

3.Restart the IIS

think it will work else let me know

Vissu

give rights for ASP.NET, IUSR_XXX, IWAM_XXX users to the web app folder

hi is u r problem solved if not reply me so that i can help u ok byee have a nice day

hi all

i diid what you say but the problem still happin the same error msg apper

when i start debug

"unable to start debugging on the web server.the underlying conniction was closed:An unexpected error occurred on a  send"

and this is my web.config 

1    <?xml version="1.0"?>
2    <configuration>
3    	<configSections>
4    		<sectionGroup name="system.web.extensions" type="System.Web.Configuration.SystemWebExtensionsSectionGroup, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35">
5    			<sectionGroup name="scripting" type="System.Web.Configuration.ScriptingSectionGroup, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35">
6    				<section name="scriptResourceHandler" type="System.Web.Configuration.ScriptingScriptResourceHandlerSection, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" requirePermission="false" allowDefinition="MachineToApplication"/>
7    				<sectionGroup name="webServices" type="System.Web.Configuration.ScriptingWebServicesSectionGroup, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35">
8    					<section name="jsonSerialization" type="System.Web.Configuration.ScriptingJsonSerializationSection, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" requirePermission="false" allowDefinition="Everywhere"/>
9    					<section name="profileService" type="System.Web.Configuration.ScriptingProfileServiceSection, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" requirePermission="false" allowDefinition="MachineToApplication"/>
10   					<section name="authenticationService" type="System.Web.Configuration.ScriptingAuthenticationServiceSection, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" requirePermission="false" allowDefinition="MachineToApplication"/>
11   				</sectionGroup>
12   			</sectionGroup>
13   		</sectionGroup>
14   	</configSections>
15   	<system.web>
16   
17       <compilation defaultLanguage="VB" debug="true">
18         
19         <assemblies>
20           <add assembly="System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
21         </assemblies>
22   
23         
24   
25       </compilation>
26   		
27       <!--<profile>
28         <properties>
29           <add name="FullName" defaultValue=""/>
30         </properties>
31       </profile>-->
32       
33       <siteMap defaultProvider="foo" enabled="true">
34         <providers>
35           <add name="foo" siteMapFile="web.sitemap" type="System.Web.XmlSiteMapProvider" securityTrimmingEnabled="true"/>
36         </providers>
37       </siteMap>
38       
39       <authentication mode="Forms"/>
40       <roleManager enabled="true"/>
41       
42       <pages styleSheetTheme="Default">
43         <controls>
44           <add tagPrefix="asp" namespace="System.Web.UI" assembly="System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
45         </controls>
46       
47       </pages>
48   
49   
50   
51   
52       <httpHandlers>
53   			<remove verb="*" path="*.asmx"/>
54   			<add verb="*" path="*.asmx" validate="false" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
55   			<add verb="*" path="*_AppService.axd" validate="false" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
56   			<add verb="GET,HEAD" path="ScriptResource.axd" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" validate="false"/>
57   		</httpHandlers>
58   		<httpModules>
59   			<add name="ScriptModule" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
60   		</httpModules>
61   	</system.web>
62   	
63     <system.webServer>
64   		<validation validateIntegratedModeConfiguration="false"/>
65   		<modules>
66   			<add name="ScriptModule" preCondition="integratedMode" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
67   		</modules>
68   		<handlers>
69   			<remove name="WebServiceHandlerFactory-Integrated"/>
70   			<add name="ScriptHandlerFactory" verb="*" path="*.asmx" preCondition="integratedMode" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
71   			<add name="ScriptHandlerFactoryAppServices" verb="*" path="*_AppService.axd" preCondition="integratedMode" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
72   			<add name="ScriptResource" preCondition="integratedMode" verb="GET,HEAD" path="ScriptResource.axd" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
73   		</handlers>
74   	</system.webServer>
75   </configuration>

h all.

i i havethe same problem now.dont know how to rectify it.please help me

If ur running a service, is your service runnig....