Error Code: 61020
Our experience shows that error messages within this range are typically caused by temporary network outages with the Nintendo Wi-Fi Connection. If there is a problem with the network, our technician's will work to get the service back up as soon as possible. Please retry your connection later.
The problem is that the wifi does work, and that i could connect to gts, it cannot be the security, as i never changed that (and i checked anyway), so it means it is most likely a nintendo wi fi connection problem.
And oh yeah, i have the same problem when battling on PBR. looks like destiny just doesnt want me to like pkmn.