Permission denied (-455) with Pre-Logon

[Wayne11]

Hi

We use the FortiClient 5.2.2.0624 and if we use it after normal Windows Login it works just normal to establish a SSL VPN tunnel to our FG200D. But if we choose the Pre-Logon Feature, we always get the "Permission denied (-455)" error. No Pre-Logon possible with Windows 8.1 and 5.2.2.

Anyone the same experiences?

[Chris_Lin_FTNT]

What is the FortiOS version?

[Wayne11]

Hi Chris

v5.2.1,build618 (GA)

[Chris_Lin_FTNT]

Are you using the same windows credential to connect to SSL? When you saw "permission denied", it's probably user name/password was wrong. You can open FortiGate debug to monitor if you can.

What if you uncheck "Use my Windows logon credentials for VPN", and enter user name/ password manually?