Before I explain my situation, I'll say that I think I had this same problem with DD-WRT sp1 (or was it sp2?). I'm not sure because I usually rebooted the router and it was fixed. Anyways, the problem I have is that once I start uTorrent on my Windows XP SP2 machine, the Tomato web interface slows to a crawl. That means when I click on [Ping] under the Tools menu, it takes 5 seconds to load. The same thing happens for the other options (eg. it takes 5 seconds [or more/less] to switch to any item in the Tomato web interface). However the Tomato interface always says its only using around 5% CPU (average) and 32% of the memory is free. After I stop uTorrent the interface USUALLY goes back to being lightning quick. Sometimes it takes a few seconds/minutes to go back to normal. The problem is really strange because when I uploaded a massive file (maxxing out my DSL connection), the web interface stayed really fast. The same thing when I downloaded a massive file. The problem definitely seems isolated to Bittorrent / uTorrent. Also, even when the web interface is going slow, it doesn't seem to affect existing connections. (eg. uTorrent stays at a consistent 83 Kbps upload speed [the max for 768 Kbps DSL] even when the Tomato interface slows down) I wouldn't care that the Tomato web interface slows down but it affects all of my other internet functions as well. (eg. ALL websites load very, very, very slowly until the Tomato web interface goes back to normal speed...) One last thing: I've tried enabling QoS but that didn't help.... Can anybody please help me out? I really, REALLY like Tomato and hope I can get this fixed.