I'm posting this so that in case somebody is looking for a solution to the Unifi PSN disconnection problem.

I recently installed unifi at my apartment and since I have cancelled my streamyx, was unable to get a stable connection to the Playstation Network. I would get disconnected every 5 minutes or so. and the error is often 8002AD3. A lot of searches on the internet proved that this has something to do with the internet connection itself and not the PSN network. Although connecting is not a problem and I was able to get Nat 2 and upnp, the disconnections were very annoying.

I tried a few solutions, using LAN connection, DMZ, port forwarding and nothing seems to work. That was until I stumbled upon a group of Unifi users who were discussing on ways to get around the unifi hardware. Apparently the dir-615 modem provided as standard by TM is not very good. Depending on the geographical area, your unifi connection might be stable enough to run the PSN. however, in my case, it wasn't.

So, A forumer on lowyat suggested a solution by bypassing the dir-615 as a bridge and using another router to do the pppoe and dhcp elements. You can find the guide here

http://unifi.athena.my/

enjoy!