I am aware that are many posts involving this issue, but I am addressing it again because I did not find ANY concrete and to-the-point answer. My router is WRT54GL, with Tomato 1.17 installed. My network is composed of 3 computers wired. My PC has Vista x64 SP1 installed with all the latest drivers. I have tried everything I could possibly try and found over the forums, but to no avail. The problem is": the game starts at 150-200 Latency BUT after a few minutes it simply jumps to 3000 - 12000 latency. The reason is unknown to me because ALL the traffic at the moment I tested this is simply not existent. It is even showed in the real time graphs. I am kinda desperate because my brother and cousin have the same issue, and it was my idea to get the Router for better bandwidth management. One note: if I disable QoS it seems that the problem disappears. If you have ANY suggestion please post it and help me.