This is a router error of some sort. It has to be imo. When I disconnected my ps3 ethernet cord from the wireless router I had and connected it directly to the cable modem I have, I no longer received the 80710723 error and was able to download the patch. Also I have had luck downloading the patch via wifi on my other ps3 that in my living room.
I have tried all the possible solutions and it is still not working pls help
Did you try Disabling WMM in your router settings? Sorry dont post on here alot didnt quote you on my first post
Well i agree with you but yet when i update my BO2 it gets to 99% and it says error i tried it several times i asked a friend and he had the same things but after a few attempts it worked, i tried 7 to 9 times and am doing one now so thats 10, it installed and when the installing got to 98% it said error 80710736
I notice that you have finally been able to download/install the patch update.
SONY consumer services is currently surveying error code 80710736. If willing, contact Sony's consumer services department and describe your issue.
Btw, good to see that you finally were able to download/install the game patch.