Admin access issues thru VPN until upgrade 5.2.9 -> 5.4.4

Hi there,

We have upgrade our first Fortigate 30D from 5.2.9 to 5.4.4.

All is ok, but we can't access to the administration (https or SSH) thru the VPN (Ping is OK). From the LAN, no problem we can access to the administration.

We don't have trusted host. I've tried to upgrade to the latest version (5.6.2 and 5.2.3) but it didn't solved the problem.

Do you know how to solve this issue ?

Thank you