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Title
IIS App Pool crashes and event viewer logs show the error "An error occurred processing a web or script resource request. The resource identifier failed to decrypt." -
Description
The ARWebAppPool can be started, but fails with the following Application Event Viewer warning:
Log Name: ApplicationSource: ASP.NET 4.0.30319.0Date: 5/22/2019 11:12:13 AMEvent ID: 1309Task Category: Web EventLevel: WarningKeywords: ClassicUser: N/AComputer: fqdn.domain.localDescription:Event code: 3012Event message: An error occurred processing a web or script resource request. The resource identifier failed to decrypt.Exception information:Exception type: HttpExceptionException message: Unable to validate data.at System.Web.Configuration.MachineKeySection.EncryptOrDecryptData(Boolean fEncrypt, Byte[] buf, Byte[] modifier, Int32 start, Int32 length, Boolean useValidationSymAlgo, Boolean useLegacyMode, IVType ivType, Boolean signData)at System.Web.UI.Page.DecryptString(String s, Purpose purpose)at System.Web.Handlers.ScriptResourceHandler.ProcessRequest(HttpContextBase context, VirtualFileReader fileReader, Action`2 logAction, Boolean validatePath) -
Cause
The machineKey on the IIS host is not sufficient to decrypt some of the information which is present on the server. -
Resolution
WORKAROUND
This is not related to Active Roles functionality.
Please reference this Microsoft resource. If the issue persists, please contact Microsoft for assistance.