this one had worked for me for many years: https://www.google.com/search?q=Linksys+cm100 early this year, I upgraded the uplink speed from 25mbps to 35mbps, I had to get a DOCSIS 3.0 modem, I bought DCM3008, it has been working smoothly since, the uplink speed can go up to 65 mbps https://www.google.com/search?q=Linksys+cm100&oq=Linksys&aqs=chrome.1. 69i57j69i59l2j0j69i60j69i61.1488j0&sourceid=chrome&ie=UTF-8#q=linksys+docsis +3+DPC3008&safe=off&tbm=shop get a separate router, you need more ports, better reliability, and stronger signal.