Power Cycling or Restarting
Most common Wi-Fi issues can be solved by power cycling or restarting your modem. The process is quick and does not require you to lose your home network settings. During the restart process, you will simply power off the modem by unplugging it from the power supply, wait 30 seconds, power it back on, and restart your computer.
During a reset, your modem and router will be reset to the manufacturer’s original settings, including your Wi-Fi name and password. A reset requires using a small object, such as the tip of a pen or pin, to hold in the small reset button on the back of your modem until the lights power off and on. This also resets all of the configurations by your Internet Service Provider and requires provisioning of the device.
You rarely want to do this as it will cause all of the settings to be wiped from your device, meaning your internet will be down until your Internet Service Provider can reprogram the device. Resetting certain modems or routers will require a truck roll and may result in additional charges.