The remote host closed the connection. The error code is 0x80070057

Question

I\'m getting a lot of these error messages in my logs on one of my servers and intermittently on two others.

Googling didn\'t reveal very much information, mostly re

Answer 1

Are you returning a Stream?

You might need to close it after the method finishes.

Check out this: Closing Returned Streams in WCF

Here is the code this blog suggests:

public Stream GetFile(string path) 
{
   Stream fileStream = null;    

   try   
   {
      fileStream = File.OpenRead(path);
   }
   catch(Exception)
   {
      return null;
   }

   OperationContext clientContext = OperationContext.Current;
   clientContext.OperationCompleted += 
       new EventHandler(delegate(object sender, EventArgs args)
       {
            if (fileStream != null) fileStream.Dispose();
       });
   return fileStream;
}

Answer 2

I know this has been answered, but on the off chance this helps someone else, it happened in my MVC project sometimes when I had one dbContext set at the top of a repository. When I switched to a using statement for database connections, the error never appeared again.

So, I went from this at the top of each repository:

DbContext db = new DbContext();

To this for each individual connection:

using (DbContext db = new DbContext())
{
     //db connection stuff here....
}

Worth saying that no one ever reported seeing the error and no error was ever shown to the browser, but nice to get it off the logs all the same!