I was having this same problem as all u guys, I tried everything u said and it still didnt work. I had all the details typed out and then this peice of s*!t comp deleted it, so I'll give u a short version...
I wasnt able to fix it, and i had tried everything that was said in this fourom, even bought an acess point signal extende (a good one too) and put it right next to the ps3, giving a 100% signal strength, manually typed IP, etc, etc. I rang up the sony help line and the woman there got me to move the ps3 out and set it up right next to the main router. And it worked like a charm, no problems. I asked her about the access point range extendr and she said that they havent been tested by sony to work with teh ps3 (only in theory). She said that the ps3 needs a CONSTANT 85% or more signal strenght to work, and that even a short break or drop in signal below 85 will result in connection errors(i.e. DNS). She told me that she had a ps in her work space where she worked which was running on wireless net, and that when she took it into the next room (which then meant there was a single brick wall between the ps3 and the router) that the signal strenght dropped down to 47% (which would result in connection termination. This is one very likely explanation for the DNS errors, as she said that many range extneders ( i was using a belkin range extender and main router) arent able to provide this constant signal (which is fine for laptops, but not a ps3). This would also explain why that other guy who posted earlier was able to get his working by using a specific brand of signal extender (his must provide a constnat signal, whereas other ones might not be able to). A signal interuption, even briefly, during the PS3 net conneciton tests, will show up with this DNS error. This explained why my one wasnt working, as there are a number of brick walls in between the router and where i used to have the PS3.
This isnt the best solution, as in many cases, such as mine, its impractical to have ur ps3 right next to wherever u have ur wreless router.
If u have this DNS error, try moving ur ps3 and setting it up right next ot the router (RIGHT NEXT TO IT, I found having just a printer between the 2 stops the signal from time to time). If it works perfectly when set up there, then that may well be the solution to ur problem. After all this mess, I think I'll try wired connections from now on.
And also if that doesnt work, I had heard that many cordless phones (home phones) transmit on the same freq as the ps3 wireless connection (I think its 2.4ghz), so that also maybe something to take into account....
Hope that helps....
i had the same problem, all i did was scan and find my wireless connection, put everything to automatic, so it would automatically find my ip, and then put these DNS servers in:
Preferred DNS Server: 220.127.116.11
Alternet DNS Server: 18.104.22.168
hey there, i'm having the same problem..i get the dns error 80710102..The obtaining ip works but internet doesn't and how do u make upnp available and nat type become type 2? my upnp's not available and nat type-failed..pls help, thanks
the 80710102 error is that the ps3 cant retrieve the dns1 and or dns2 which is the ip address of your internet service provider (isp) do a manual connection on your ps3 and manually enter the info you can obtain your dns1&2,subnet mask, gateway simply by going on your routers status page or on your computer by clicking start ,then click run and in the run box type cmd or command and hit enter a black window will open and in that window type ipconfig/all hit enter look down the list and write down all that you need
so i got my network to work.... i have a d-link router and they have a restart button on the back i hit that and it somehow worked .. i dont knwo how long it will work for but so far better than none its worked for a couple of days now so i keep hopin it will work / if any of you use a d-;ink router and are getting the same problem then try the restart button