Modem

When you sign up for an internet connection, your internet service provider advises you to go for the modem/router that is provided by them. It may seem like some businesses recommend it for the monthly rental fees they will get.

It's annoying when Wifi network flickers, sometimes lost. When you encounter such a situation, you try to plug the network cable directly into the computer, if used normally, your Wifi transmitter may be faulty.