Machine Key - Windows Server 2016, IIS10

Question

User556193381 posted

I have 2 windows servers 2016 and also a balancer . 

In the web.config of the MVC web application i have the following:

  <system.web>
    <machineKey     validationKey="40DC5A902FB71734AF1F624C0774......."
                decryptionKey="A209E39A5ACC2FE......."
                validation="SHA1"
                decryption="AES" />
  </system.web>

Once i publish my web application to both IIS, I can see the related info under the web application,"ASP.NET" section, "Machine Key".

However, everytime a user is transferring to a different IIS, is getting the error about the cryptographic key. After a user cleans the cookies, it works fine.

Any suggestion to resolve this issue?

Thanks

Answer 1

User-848649084 posted

Hi,

Could you share that detailed error message? what are your iis session state setting and application pool recycling setting? 

Regards,

Jalpa