Webservices - Operation timed out

[Pratappeddinti]

I am getting operation timed out exception when i am using webservices. What is this operation timed out exception. How can i fix this problem.

[Vidhura]

Hope the folowing helps

option1 :
Check if your query or SP taking long time to execute.
set the query excecution limit to extra 1000 seconds in webservice

option 2:
The following was found while doing google

Error:The underlying connection was closed while using webservice
The issue is related to a bug in .Net that causes connections to be lost during a .net webservice call.
Essentially requests are made by opening a connection, making a number of them then closing it. In this occurance, the connection times out but is not recognized as closed and thus a new connection is not established for the next request and an error is returned. Setting the keepalive to false sets it to close and reopen connections for each request.

Solution:
We have to manually override a function in Reference.cs
protected override WebRequest GetWebRequest(Uri uri)
{
HttpWebRequest webRequest = (HttpWebRequest) base.GetWebRequest(uri);
webRequest.KeepAlive = false;
webRequest.ProtocolVersion=HttpVersion.Version10;
return webRequest;
}