My PS3 no longer downloads game updates because of error 80710723. After searching the Internet for solutions, the one I'm stuck on is opening ports, specifically:
TCP: 80, 443, 5223
UDP: 3478, 3479, 3658
The steps I’ve taken so far:
After logging into my router, I select Firewall Settings. From there I select Port Forwarding on the side menu. On the next screen, I choose the advanced option for creating a new port forwarding rule. For TCP 80, this is what it looks like after I enter the information.

After clicking add, this is the completed info:

I’ve done this for all the ports that need to be opened, with the exception of UDP 3658, which was already listed.

I’ve restarted both my router and PS3 after completing this but the download still fails. Have I correctly opened the ports, or is there a step I’ve missed or done incorrectly? Is there any other way to address this issue? Any help would be greatly appreciated.