@itman The subnet mask is not /8 and we don't face any other network problem just this particular computer!
@Marcos I changed the policy settings that you mentioned but nothing changed
1. I configured the DHCP/DNS settings with the correct IP addresses, didn't work.
2. I disabled the DNS/DHCP settings. Nothing changed!
I ended up creating another policy with learning mode setting only and assigned only this new policy to the computer and the unblocking of the previously blocked communications worked but just that.
It doesn't work as in true learning mode with rules c