Dear all, this my first post! I appreciate your help :) I never used a
fortigate, this is my first experience.I configured a Fortigate 60D
(firmware 5.2.1) with two interface Wan and i created a WAN link load
balancing set "Weighted Round Robin 50/50...
I solved the problem! I have updated the Fortigate to the latest version
and now everything works fine.So the problem from my point of view was a
bug on the OS :)
Thanks everyone for the reply. So I'm sure the problem is not ISP side
because I tried to configure the WAN1 with the parameters of the WAN2
and it worked without problems and I also tried to configure the
interface WAN2 with the parameters of the WA...