Now im not employeed with sony although i shouldve have been with that long wait on hold . But I too was experienceing this code 80710102 same as alot, it is because they (sony) are doing a PSN maintenance to the servers. As I was told by a representative of sony. They said sorry lol, but this is not for all, there are some servers goin up as we speak, and some that were still up as they were doing this.
I was told this will be going on till 5 pst. So dont go crazy, and dont start reinstalling your HD lol. I guess wait or keep trying periodicaly like I will be. Although watch out cause i have gotten on just to get booted (timed out) 5 mins later.
Hope this helps a little, wish they had a new error code that maybe would tell you this, not one that makes it sound like its your ip, or your set up lol. Or I did not see a notice, but maybe a notice for all.