Thanks for the reply.
I attempted both and both failed. I believe that I hit a but, but have now got it working.
By default, the firewall port forwarding page showed a computer that I no longer have in my lan. It also showed no ports forward. It didn't allow me to add any ports, but didn't say why.
I selected a different computer in my lan and attemped to add application port forwarded. It then complained that these were already forwarded to my now non-existent computer. I still saw nothing forwarded by clicked remove and that old computer. I now saw a screen with those ports indicated as forwarded. I removed those. Now, I was able to select the new computer and to add those ports for forwarding.
I think that there may be a subtle bug when attempted to forward ports to a device that doesn't exist.
I'm now good. Thanks for your help. I saw other replies that indicated this should work, so kept at it.