Time Warner Cable's RoadRunner Internet service offers broadband cable Internet access for your home through a modem provided by the cable company. Time Warner also offers a modem that includes a wireless router, although it often charges for the equipment. Finding a router that is compatible with your Time Warner modem is easy -- most modern routers work with the cable company's modems.
To work with your Time Warner Cable modem, your router must have a coaxial cable connection and an Ethernet or USB port. These are standard on most modems. Also standard on most modems is the use of Internet Protocol version 4, or IPv4, which you need to work with Time Warner Cable. This protocol allows the router to share the IP of your modem to multiple devices, such as your laptop, printer and smartphone.
If you are purchasing a combination modem and wireless router to use with RoadRunner, Time Warner requires that it meet Data-Over-Cable Service Interface Specifications, or DOCSIS. Most modems with wireless routers will meet this specification, but make sure to download the most recent drivers and the latest revision of DOCSIS, if providing your own equipment.
The Netgear N900 Wireless Dual Band Gigabit Router WNDR4500 is rated "very good" by "PC Magazine," and it is compatible with Time Warner Cable Internet service. At $180, as of the date of publication, it's a bit pricey, but many lower-priced Netgear routers, such as the N600, also work with RoadRunner modems. Cisco's RoadRunner-compatible Linksys E4200 Maximum Performance Wireless-N Router starts at $80 and was rated "very good" by "PC Magazine." Starting at $128, the Asus RT-N56U Dual-Band Gigabit Wireless-N Router, which works with Time Warner Cable Internet, received an "excellent" rating from CNET.
Time Warner Cable offers installation and setup for the routers it provides, as well as ongoing technical support to troubleshoot any connection issues you experience. However, the company won't guarantee that a router you purchase will work correctly, nor will it offer technical support on a product it doesn't provide.