Very very urgent: WebForms.PageRequestManagerServerErrorException error only on one computer

• Saturday, May 12, 2012 12:58 PM

   

   
  

  0

  Hi,

  I have developed a web application using .net framwork 4.0 and asp.net 4. I have used AJAX controls in all my web pages. The application works fine on all computer. But only one computer gives following error I have used UpdatePanel control to make an AJAX call:

  Webpage error details

  User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)
  Timestamp: Sat, 12 May 2012 10:57:12 UTC

  
  Message: Sys.WebForms.PageRequestManagerServerErrorException: Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that <machineKey> configuration specifies the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster.
  Line: 4723
  Char: 21
  Code: 0
  URI: http://localhost/LotCleaning/ScriptResource.axd?d=pPbs3WYTb1xz3E4d4uQ1JTgR0C_d4qtDmIjoJeOLWIIds8H61BCRNtqhfwArk7J7DVWmLSVbqh_5hS7OUXrBhWsig32hFB8X24VuHqQNAGuJoNl-hsTH2ctnnUJXEHb5MoWy29NamUKtIVYmAMB4d9qArPUrpXDWeailxqj7cgHMMh_90&t=fffffffff9d85fa6

  
  Message: Sys.WebForms.PageRequestManagerServerErrorException: Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that <machineKey> configuration specifies the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster.
  Line: 4723
  Char: 21
  Code: 0
  URI: http://localhost/LotCleaning/ScriptResource.axd?d=pPbs3WYTb1xz3E4d4uQ1JTgR0C_d4qtDmIjoJeOLWIIds8H61BCRNtqhfwArk7J7DVWmLSVbqh_5hS7OUXrBhWsig32hFB8X24VuHqQNAGuJoNl-hsTH2ctnnUJXEHb5MoWy29NamUKtIVYmAMB4d9qArPUrpXDWeailxqj7cgHMMh_90&t=fffffffff9d85fa6

  
  Message: Sys.WebForms.PageRequestManagerServerErrorException: The state information is invalid for this page and might be corrupted.
  Line: 4723
  Char: 21
  Code: 0
  URI: http://localhost/LotCleaning/ScriptResource.axd?d=pPbs3WYTb1xz3E4d4uQ1JTgR0C_d4qtDmIjoJeOLWIIds8H61BCRNtqhfwArk7J7DVWmLSVbqh_5hS7OUXrBhWsig32hFB8X24VuHqQNAGuJoNl-hsTH2ctnnUJXEHb5MoWy29NamUKtIVYmAMB4d9qArPUrpXDWeailxqj7cgHMMh_90&t=fffffffff9d85fa6

  • Reply
  • Quote