Solved!
Thanks to this article: https://www.zenarmor.com/docs/network-security-tutorials/how-to-configure-opnsense-nat#how-to-configure-port-forwarding-for-web-services
My problem was that each rule should have been 'any' in the source address and 'PrimaryWAN address' in the destination address.
FYI
Thanks to this article: https://www.zenarmor.com/docs/network-security-tutorials/how-to-configure-opnsense-nat#how-to-configure-port-forwarding-for-web-services
My problem was that each rule should have been 'any' in the source address and 'PrimaryWAN address' in the destination address.
FYI