Your modem and router work together to connect you to the internet through your internet service provider, or ISP. bedo/Getty Images One big factor that may affect the router's connectivity is if ...

Those lights on your router or cable modem aren't just there for show. They convey information about the status of your internet connection. Here's how you can use them to troubleshoot problems.

If you buy a compatible modem and basic router for $100 total, you’ll save money. But sometimes renting can still work out in your favor.