I've been having this problem for 3 days now. I have a 5Mbps downstream 768kbps upstream dsl connection and noticed that webpages were opening noticeably slower and streaming video took ages to load. All speed tests I run show that I get around 300-400 kbps downstream even though my upstream is normal at around 600 kbps. I know it is not my computer or browser since I've tried the tests on other computers in my house. I contacted my isp and they tested my phone line and said it was ok. They even changed the modem but it didn't help. I tried to connect using my isp's modem with router functionality and also as a bridge with my own router but I get the same results. The problem started happening overnight without any changes to any configuration in my home computers or the network. Today I noticed that I get much higher speeds (almost full bandwidth) when downloading torrents but as I said videos take forever to load and all speedtests show a very low downstream speed. Anybody know what could be causing this? I suspect that it is a problem with my isp (perhaps with port 80?) but they say that everything shows up as normal on their side.