wcf exception when the dataload increases

iam working in an silverlight application witha datgrid displaying the records as per the value of a text box

when the records exceeds 3000 it displays an error as below and it works fine when the rcord count is below 3000 ? how to overcome this exception or to handle this

        base    {System.Net.WebException: The remote server returned an error: NotFound.
   at System.Net.Browser.BrowserHttpWebRequest.InternalEndGetResponse(IAsyncResult asyncResult)
   at System.Net.Browser.BrowserHttpWebRequest.<>c__DisplayClass5.<EndGetResponse>b__4(Object sendState)
   at System.Net.Browser.AsyncHelper.<>c__DisplayClass2.<BeginOnUI>b__0(Object sendState)}  System.SystemEx开发者_运维技巧ception {System.Net.WebException}

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You are probably hitting the MaxReceivedMessageSize or MaxItemsInObjectGraph limits defined respectively in the binding and the behavior.

You need to update both configurations with these parameters set to a sufficiently high value (Int32.MaxValue)