There are a lot of cable modems on the market, and many are compatible with Xfinity service. However, that doesn't mean that every modem is perfect. My basic requirements are: Currently certified by my ISP. Buying a cable modem that isn't currently certified is simply unlikely to work. Capable of supporting needed service speeds. Buying a cable modem which cannot deliver the service needed is going to be an immediate bottlebeck. Buying a cable modem which is far more capable that the service speed is likely a waste of money, No built-in WiFi capability or Telephone line capability. A personally-owned WiFi router is likely a better choice than an all-in-one unit that will need to be positioned exactly where the cable is within the house. Don't over-buy. Cable modems do not last forever. Manufacturers abandon support, and cable modems aren't infinitely durable due to things like lightning strikes and being powered on for years at a time. So what ...
Useful and Useless Ideas from Lance J.