Symptom
VPN connections fail with incorrect credentials when using MS-CHAPv2 authentication and LmCompatibilityLevel is set to 5 on the DC.
Resolution
Please note: For this to work, you must have DualShield version 6.9 (build 20240119) or above installed.
This fix applies to two-step authentication only
e.g.
Then please follow the steps in the links below...