Frequent Internet disconnections experienced on a device can occur as a result of hardware issues and loose cable connections. This article provides steps you can follow to address the most common issues with your wired devices.
If you have no internet connection on any of your devices connected to your in-home network, you may want to check out the article Troubleshooting: Unable to connect to the Internet for some basic modem troubleshooting and diagnostic tips.
Note: If you are attempting to troubleshoot a wireless Internet connection or are experiencing issues with your WiFi, please read the article Troubleshooting: WiFi connection issues