Pfsense bridged with vlans and laggs : problem time to live exceeded

[prod.csio]

Hello,

I have a problem.
I created a bridge with the interfaces LAN and WAN. I created a vlan with a static ip address on his interface.
Two LAGGs are created (2 physicals interfaces for WAN, and two for LAN).

I access to the web administration, the firewall works fine and from an host i ping the pfsense !

But from the pfsense, i can't ping the others hosts : i have a message "Time to live exceeded" and i don't understand a solution.

Do you have an idea to resolve this problem ?

Thanks.