For numerous homes and offices, this will be the perfect solution, but if you are looking to do more with your small network - like adjusting security settings yourself - you may discover the combo box is a bit limited. This is where getting your own xfinity compatible modem and a separate router can be an advantage. Putting money back in your pockets! One of the major questions consumers have is, whether it is best to purchase them or rent them? While renting the Internet Service Providers (ISP) machine may sound like the easiest as well as quickest alternative, consider the following points and the advantages of buying xfinity approved modems. Xfinity Compatible Modem In the last three years (before purchasing own modem or router combo), we have used two different ISP’s. In both cases, renting the company’s router, which had the modem combo package! Freedom to customize Owning a router will give the buyer the alternative as well as freedom to customize it to work t...