what could happen in HttpWebRequest.GetResponse()?

System.Net

Verbose: 0 : [1772]

WebRequest::Create(http://www.akaoyan.com/index_shiti_more.asp?action=&c_id=42&s_id=133&page=1)
System.Net

Verbose: 0 : [1772]

HttpWebRequest#31853378::HttpWebRequest(http://www.akaoyan.com/index_shiti_more.asp?action=&c_id=42&s_id=133&page=1#-940297018)
System.Net Verbose: 0 : [1772] Exiting HttpWebRequest#31853378::HttpWebRequest()
System.Net Verbose: 0 : [1772] Exiting WebRequest::Create() -> HttpWebRequest#31853378
quiting MakeRequest...
System.Net Verbose: 0 : [1772] HttpWebRequest#31853378::GetResponse()
System.Net Information: 0 : [1772] Associating HttpWebRequest#31853378 with ServicePoint#55634702
System.Net Information: 0 : [1772] Associating Connection#41745883 with HttpWebRequest#31853378
System.Net Verbose: 0 : [3816] HttpWebRequest#31853378::Abort(Time over)
System.Net Error: 0 : [3816] Exception in the HttpWebRequest#31853378:: - Time over
System.Net Error: 0 : [1772] Exception in the HttpWebRequest#31853378::EndGetResponse - Time over

I wonder what could happen in GetResponse() to prevent the request been send out?
The HttpWebRequest object is carrying cookies and referer. And I've used it this way for several times in the past one year, and it worked fine except this time.
More detailed info could be found in http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=603138&SiteID=1 .
Thanks for any help.
[3404 byte] By [deerchao] at [2007-12-23]

.NET Development

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