Most ISPs charge to rent their equipment. By buying your own modem and router for ~$150, the device pays for itself in about a year. Just make sure the modem you buy is on your ISP’s "Certified Compatible" list (usually found on their website). Summary Checklist:
Do you know your or the approximate square footage of your home so I can suggest a specific model? buy new modem router
Many people have a 2-in-1 device that does both. If yours is more than 3-4 years old, it’s likely time for an upgrade. 2. Check Your Speed First Before buying anything, look at your monthly internet bill. Most ISPs charge to rent their equipment