Question for all you computer/IT people: I'm looking to upgrade the Wi-Fi router in my house. We're presently using a cheap-o Belkin that we bought several years ago, but it's not keeping up with our needs (especially streaming video on Netflix, Amazon, etc). I've read that I need a dual-band router to keep up with that, but there are lot of models to choose from. Also, do I need to upgrade my cable modem as well? The current one is a Motorola Surfboard SB6141, and it's also several years old. Specs on that are below: DOCSIS 3.0 certified, capable of up to 343 Mbps and upload speeds up to 131 Mbps based on Cable provider service Our internet provider is Xfinity/Comcast, and we have the Blast plan with DL speeds up to 75 Mbps. A little more info: we live in a 3 level townhouse, and the router will be stationed on the bottom level. Most of our usage will be on the main level. Any help navigating this would be appreciated - thanks!