FortiGate 140D Restarts itself with IPSEC Traffic when it's 100Mbps+

[elecboy]

Hi,

I have 2 FortiGates connected via VPN IPSEC. Both are in v6.0.4 one is FGT 140D-POE and the other one FGT 100D. I have a few servers in both sides with VMware ESXi 6.7, the problem I am having is with the 140D. If I do a vMotion out from 140D (Moving a VM from a server to another) I can hit 500Mbps+ without a problem. If I send a VM IN to the 140D it stays a few minutes then it drops the connection completly and the FGT restarts itself.

I started doing Traffic Shaping from the 100D to the 140D and I found out that at 60Mbps I can have a consistent connection and sometimes works. Any Ideas maybe a bug in the new version?