router killing my download speeds

[bigdaddydowd]

i just put in a linksys cable/dsl router and its killing all of my download speeds. My friend says its blocking my ports and i need to open them though the router. MY question is how do i do this and what ports do i open up.

[feigned]

http://www.portforward.com/routers.htm

Find yours, then follow the directions for whatever application you're using.