My son was trying to connect to the Nintendo WFC with 3DS on Soul Silver and kept getting this error. I followed Nintendo's trouble shooting guide, deleted and reset the connections, and did all the other tests including Pokemon Black and Pokemon White. The system will connect and all other games will connect but this game is giving this error. I find it odd that just this one game will not connect. Is this a common problem with this game?
I have already tried it. This last time it tried to connect and then game the message: "an error occurred while attempting to communicate. Please turn off the power, restart this DS system, and try again". It also says: "If this message keeps appearing please contact Nintendo Consumer Service." Weird that this is the only game that will not connect. The pokemon black and pokemon white will connect to the global trade system and the Nintendo wfc. And it actually shows a full green connection but just will not connect on Soul Silver.
Instant Update: He was trying again while I typed this reply and it worked instantly. Just really weird. Would think that maybe the systems wi-fi was going out but the other games worked with wi-fi fine and this particular game would not work on our other 3DS or DSi XL.