Restart your modem by unplugging it for 30 seconds to see if the red light goes away. Check for service outages with your internet provider to rule out issues beyond your control. Ensure all cables ...

Normally, the activity light on my cable modem only flashes when there are other indicators of network activity (namely Zonealarm's graphs, and the task bar "Local Area Connection Status" indicators).

This post was done in partnership with The Wirecutter, a list of the best technology to buy. Read the full article below at TheWirecutter.com. A great cable modem should support at least eight ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Joel Santo Domingo Joel Santo Domingo is a writer focused on networking and ...