Review on 🔌 Linksys CM3024 High Speed DOCSIS 3.0 24x8 Cable Modem - Comcast/Xfinity, Time Warner, Cox & Charter Certified (Modem Only, No WiFi) by Logan Goozmer

This modem claims to work with Comcast/Xfinity, although you'll need to contact support to get it working. A known problem with the modem is that the latest firmware loaded on it isn't supported by Comcast, so it reboots every 30 seconds until you ask Comcast to do something to fix it on their end. It's cheap and works well, but be aware that it may not come out of the box. Edit: Downgraded from 3 to 1 star. Do not buy this device if you have Comcast as your ISP. Every time this device reboots the problem reoccurs and you have to spend 30 minutes with Comcast support to have them reset the device to fix it. Save yourself the hassle and get your next model.