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Error: 'Failed to authenticate System.Runtime.Remoting.RemotingException: Requested Service not found' when users cannot log into the web interface on a computer running Windows in FIPS compliancy mode

Author: Luis Fernandes

Answer

PROBLEM

When trying to open the web interface the user is asked for username and password. Even after entering both correctly the user cannot log in. The following error is shown to the user:
 
Failed to authenticate
System.Runtime.Remoting.RemotingException: Requested Service not found
 
../Core/Debuglogs/ConfigurationServices.log reads:
 
2013-01-04,15:56:23,978,1,"#000008EC","#00000004","error ","ConfigurationServices","Error: Format - This implementation is not part of the Windows Platform FIPS validated cryptographic algorithms." 

ENVIRONMENT

  • GFI MailArchiver
  • All Supported Environments

SOLUTION

Ensure that the Windows FIPS compliancy mode is disabled and reboot the server. Some areas which to check can be found here:
 
GPO Setting:
Computer Configuration> Windows Settings > Security Settings > Local Policies > Security Options > System cryptography: Use FIPS compliant algorithms for encryption, hashing, and signing 
 
Registry Settings:
HKLM\System\CurrentControlSet\Control\Lsa\FIPSAlgorithmPolicy\Enabled
HKLM\System\CurrentControlSet\Control\Lsa\FIPSAlgorithmPolicy

0=disabled
1=enabled
 
For more information, please see the following Microsoft article: http://support.microsoft.com/kb/811833

CAUSE

GFI MailArchiver does not support the Windows FIPS compliancy mode.