troubleshooting Question

Exchange 2016 CU 20 failure

Avatar of Robert
RobertFlag for United States of America asked on
Exchange* windows 2016 server* exchange 2016 upgrade errors
8 Comments1 Solution11 ViewsLast Modified:
I am upgrading Exchange 2016 from CU9 to CU20.  The process got as far as Step 11 of 18, before it failed with the following error:

Error:
The following error was generated when "$error.Clear(); 
          Install-ExchangeCertificate -services IIS -DomainController $RoleDomainController
          if ($RoleIsDatacenter -ne $true -And $RoleIsPartnerHosted -ne $true)
          {
            Install-AuthCertificate -DomainController $RoleDomainController
          }
        " was run: "Microsoft.Exchange.Management.Clients.FormsAuthenticationMarkPathUnknownSetError: An unexpected error occurred while modifying the forms authentication settings for path /LM/W3SVC/1.  The error returned was 5506.
   at Microsoft.Exchange.Configuration.Tasks.Task.ThrowError(Exception exception, ErrorCategory errorCategory, Object target, String helpUrl)
   at Microsoft.Exchange.Configuration.Tasks.Task.WriteError(Exception exception, ErrorCategory category, Object target)
   at Microsoft.Exchange.Management.SystemConfigurationTasks.InstallExchangeCertificate.EnableForServices(X509Certificate2 cert, AllowedServices services)
   at Microsoft.Exchange.Management.SystemConfigurationTasks.InstallExchangeCertificate.InternalProcessRecord()
   at Microsoft.Exchange.Configuration.Tasks.Task.<ProcessRecord>b__91_1()
   at Microsoft.Exchange.Configuration.Tasks.Task.InvokeRetryableFunc(String funcName, Action func, Boolean terminatePipelineIfFailed)".

Any idea what is causing the issue so that I can fix the issue and finish the upgrade?

-Robert
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