http://bugs.winehq.org/show_bug.cgi?id=31438
--- Comment #37 from Rosanne DiMesio dimesio@earthlink.net 2013-01-01 11:13:50 CST --- I also tested downloading the FIFA 2013 demo and Sims 3 teaser, and both started up and exhibited the same stall-pause-resume behavior as BF1942. It sounds like the inability to start a download at all only affects paid games, and cannot be reproduced with free games/demos.
As for the repeated stalling while downloading, I am reluctant to label it a Wine bug, because I used to see exactly the same behavior with native Ktorrent. I tested several other native torrent clients that were not based on Qt4, and none had that problem. So the bug may be somewhere in Qt4 rather than Wine, but it will take someone with more expertise than I to make that call for sure.