Has anybody tried out QoS on the device? I'm having a world of trouble and Linksys support is less than enthusiastic (alright, that's me sugarcoating) to really look the issue. Bottom line I have a 7000/300 line and until recently was using the WRT54G V1 with firmware 4.30.5. I've had the WRT54G configured as follows: QoS enabled, bandwidth 300kbit manual, and my voice device with max priority (based on its MAC address) and it works perfectly. So I turned on QoS on the WRT300N and had to find out the hard way that the bandwidth you can indicate is the downlink bandwidth (set the bandwith to 300kbit and your download is limited to that speed).. so I set the BW to 7000 kbit, and prioritize the VoIP device (highest priority based on MAC address). However, when I start uploading and the call goes to hell, even though the router clearly limits the the bandwidth available for my upload. The upload is limited to the same speed as on the WRT54G though.