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ASMX ws: An unexpected error occurred on a receive; failing intermittently

Posted By:      Posted Date: August 24, 2010    Points: 0   Category :ASP.Net
 

Hi,

we I have asmx web service, this seems to be working fine for 25 client machines but one site keeps failing. The client gets a small dataset and tries to send it across to server to process. The dataset saved in XML file only makes 450 - 550kB. The web service is contacted twice in a short time every half an hour. The other smaller dataset (50kB) goes across everytime without any troubles. This site is not trying to send the biggest dataset, other site are sending much bigger datasets without problem. The catch is this failing site keeps retrying for 20 times (10 hours) in average and then eventually goes across. I don't think the service webmethod is erroring out as that is all wrapped up in the try and catch and the exception is not getting thrown, also every other try for the exact same webmethod used by any other client site seems to be working fine.

System.Net.WebException: The underlying connection was closed: An unexpected error occurred on a receive. ---> System.IO.IOException: Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host. ---> System.Net.Sockets.SocketException: An existing connection was forcibly closed by the remote host
   at System.Net.Sockets.Socket.Receive(Byte[] buffer, Int32 offset, Int32 size, SocketFlags socketFlags)
   at System.Ne


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