validation of viewstate mac failed

To solve this error, the customer needs to generate a machine key and need to add in web.config file.

You can generate machine key from ASP.Net MachineKey Generator (

To get more details about this issue, you may refer Solved: "Validation of viewstate MAC failed" - 

  • windows hosting, Windows reseller Hosting Servers, Windows Hosting Plans, Windows Hosting Services, Windows Reseller Hosting, Windows Hosting Cheap Plans, Windows VPS Hosting
  • 3 Users Found This Useful
Was this answer helpful?

Related Articles

getting error on sql server management studio‏- Array out of Index

Hi,To solve this error, you can do two things.Please updgrade your SQL Management tool to 2012 or...

SMTP Details of Windows server

Please use below details to configure outlook. SMTP address :  MAIL.YOURDOMAINNAMEPort Number:...

How to backup my email accounts

Hello,1. Please take configure your email id in outlook.2. use below link to take backup &...

How to check nameservers of my website

Dear Customer,Please follow below steps to check nameservers of your website.1. open...

How to avoid hacking of your website/ How to make safe website

Hello   Most of the times user think that hacking is the server side issue but it is not always...