An error occured during communication with the server. This is a DNS error. (80710102)
For more information on PS3 errors visit www.PS3Blog.net is has all of the Playstation 3 Error Codes list and lots more info.
Playstation3 Error 80710102
Playstation3 Error 80710D23
For the past week off and on I have been having problems with my Playstation connection. I keep getting signed out while I was in the middle of a match, multiple times.
After a few searches on the web I found the PS3Blog.net site and it was very informative. You can check your errors and it will have a recommended sugestion to fix your problem (error).
It also has more information such as scheduled maintenance (downtime) among other things. Hopefully after you check your error(s) you will be able to correct your problems.