VIP and routing not working when I add another Harware Switch

Hi everybody,

I have a strange behavour on my Fortigate 140E

This is a 38 ethernets ports appliance release 5.6.2.

When i click to OK to add an Hardware Switch ( just one port with minimal configuration ip 0.0.0.0 )

VIP from outside stop workingand i can't go to Internet.

Perhaps all touting system is stuck

If i delete this hardware switch, VIP and internet access works again.

Perhaps someone had seen this issue

Regards

Cedric