The NETGEAR CM400 High Speed Cable Modem provides a connection to high-speed cable Internet, up to 340 Mbps. With DOCSIS 3.0 it is 8X faster than 2.0. It is CableLabs DOCSIS 3.0 Certified to work with cable Internet providers XFINITY from Comcast, Spectrum, Cox, Cablevision and more.
After buying this modem our internet connection stopped working. I contacted Time Warner, thinking it was their issue. They insisted it was probably a bad modem. I returned it and bought another of the same modem. Same issue. Time Warner came, checked all of the connections and even checked the connection on the pole at the street. The also confirmed that this was the right modem for our internet connection. The TWC tech said he had encountered issues with this very modem three times in the previous two weeks. I returned this and purchased another brand's modem instead, and we haven't had any issues with that modem. So, despite the box saying this modem is Time Warner compatible, it is not.