Wi-Fi repeaters do the same job as extenders but connect wirelessly, resulting in a decrease in bandwidth and increased latency. "Wi-Fi booster" is a generic term for both extenders and repeaters ...
One solution is a WiFi repeater. You can buy one, of course. But you can also make one out of an ESP8266 and some code from GitHub. There is also a video about the project, below. [Martin Ger’s ...