MultiWAN failover with squid3 on pfsense 2.1

[geminux]

Hello,

I have issue creating multiwan with squid3 and pfsense 2.1
I created a topic about that 2 weeks ago in the "package" section of the forum because I thought it was squid related.
You can find the original post here : https://forum.pfsense.org/index.php?topic=85160.0

But unfortunatly nobody seems to be able to help me…  :-
So, because it's also a multiwan related question, I also ask for help in this section of the forum

Thanks !