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Error: 'Module' Object has no Attribute 'MODE_CCM'

Formerly SecureONE

Symptom​

You see the following error in the system Access History or when you run a rescan from the Grant Access page:

'module' object has no attribute 'MODE_CCM'

Cause​

This error is caused when SMB encryption is enabled on the system.

Resolution​

IMPORTANT. To perform troubleshooting steps, you must have:

  • the administrator role
  • an ability to run PowerShell on the system

Troubleshooting steps:

  1. Verify SMB encryption is enabled from PowerShell:
Get-SmbServerConfiguration | Select EncryptData
  1. Disable SMB encryption on affected servers:
Set-SmbServerConfiguration -EncryptData $false
  1. Rescan the system from the Grant Access page to verify the issue is resolved

Learn more in SMB security enhancements βΈ± Microsoft: https://learn.microsoft.com/en-us/windows-server/storage/file-server/smb-security