There seem to be many problems with QOS on this router. I've just loaded the latest 1.05.B02 and I'll test it out, but the prior 1.05.B01 and the 1.04 firmwares both bring my wireless speeds to their knees. As in I go from 45 to 50 mbps, all the way down to about 7.5 on wireless as soon as I touch the QOS page. Taking every device out of QOS won't fix it either; I end up having to do a reset to get the wireless speeds back up to normal. Have done a 30-30-30 reset and it still exhibits this odd behaviour. D-Link ought to spend a bit more time working on getting the firmware up to snuff, methinks.