Squid Transparent Proxy

[ngsolutions]

Hello,
I have pfSense 2.3.4 with 3 interfaces
WAN
LAN management
LAn Client
I have installed Squid and enable it on LAN Client network and enabled transparent proxy on LAN Client as well
Having a windows client, try to surf on internet does not work
If I specify proxy address it works
Do I need to create any NAT rule?
Cheers
Goksel