Are there after market broadband modems you can buy like for comcast/xnfinity except without having to get it from the provider and paying extra? I have a cable line in my room obviously so all I would need is a splitter, but I cannot for the life of me find a broadband modem for like comcast/xfinity they're all for dial up. I wanted to try to run a 200ft cat 6 ethernet cable from my downstairs into my attic and down to my room through the walls, but I was told its impossible and or very hard. I'm currently using wireless but its slow, and I drop a lot. I was also wondering router brand effects speed. I have a D-Link and its probably really cheap tbh I didn't buy it.