I have the FiOS Internet 15/5 plan, and Speedtest.net and other connection speed sites all say I'm getting my 15Mbps down and 5Mbps up speeds. Pages load quickly and there are seemingly no issues, until I try to watch an HD video. No matter what device I've tried, on both WiFi and Ethernet, I get the same issue where Videos don't buffer in a timely fashion. Almost without fail I'll get constant buffering when I attempt to stream an HD video even on a Quad-Core PC hooked up via Ethernet directly to the Modem. 15Mbps should be way more than enough for smooth playback of HD video, and services like Vudu report that 9Mbps is the maximum needed for their "HDX" 1080p videos. However every service I try gives the same issues and Adaptive Streaming players(like Netflix) consistantly give me 480p or less quality streams. The video quality looks bad on my PC's 1080p monitor. Also even 360p and 480p streams on sites like Youtube will give me buffering issues as well.
My Modem is an Actiontec MI424-WR Rev. E(WiFi G) router.
I've had FiOS internet for the past few years and haven't had any issues until the past few months. Can anyone help?