http://bugs.winehq.org/show_bug.cgi?id=19397
--- Comment #66 from Juan Lang juan_lang@yahoo.com 2009-07-30 13:39:50 --- You may also want to try reading through the Linux IrDA troubleshooting hints here: http://www.hpl.hp.com/personal/Jean_Tourrilhes/IrDA/#checking
This one in particular might be worth trying: echo 1 > /proc/sys/net/irda/max_tx_window and try again. I think it's a long shot, but it can't hurt to try, right?