So here's my story. I have an AMD quad core running Windows XP 32-bit that has 4 gigs of RAM and a 100 Mbps NIC. My internet is slow, but only in certain circumstances. If I get on YouTube, it takes 5-10 minutes to load a 2 min video in 720p. Its the same with pulling up regular webpages, it just takes to long to load them. On the other hand, I can play LOL or LOTRO fine, and on my Xbox I get no lag at all playing COD on live. Ive got Verizon Fios through which I am promised 25 Mbps down and 5 Mbps up. Ive done several several speed tests and they all say I'm getting 25 down and 4-5 up. Now my step mom has Fios also, through which she gets 25 down and 5 up (I've tested it). Now if I pull up a video on her computer I can load a 2 min video in 720p in like 30 seconds. What is going on here? Any ideas?
Software/Hardware used: AMD Phenom Quad Core, Windows XP 32-bit, 100 Mbps NIC.