I tried to transfer my Pokemon from pearl to black 2 with to ds lites and before the two games connect it freezes..the poke transfer guy then says "ugh theres communication problems but your welcome to try again later" ...any help would be greatly appreciated!! Thanks!!
Check Pearl. Boot up the game to see what is wrong. You might see that it was corrupted, most likely, it won't do anything bad, but you have to restart from the last save file. Once this clears up, you should be able to do it again.
Hope this helps!
you may have some problem with the infrared connection thing or you might be running out of charge on one of the ds's or you might have had one of your ds's go in sleep mode, that happens with me sometimes.