I am running a small network of about 15 users through using a verizon wireless PCMCIA card in a linksys wrt54g3g-st router. I am having a lot of trouble with the users streaming audio and video, and also downloading videos. My router allows for port blocking and website restrictions. I currently have a few sites blocked but I'm still having trouble. Does anyone know which ports I need to block to stop all streaming audio and video? Also is there anyway to block media downloads? Any help will be greatly appreciated! Thanks to all in advance! Also I am remotely managing the router through port 8080 and I'm using DynDns.org for DDNS.