In some cases, all your Wi-Fi router needs is a fast restart to repair Wi-Fi connectivity issues. Simply switch off your Wi-Fi network and then turn it back on after a few seconds to see whether your internet connections are still poor. If it doesn't work, restart your MacBook devices. It's possible that one of your gadgets, rather than the Internet connection, is to blame for your poor Internet speed.
Antennas on the router should be adjusted.
When the antennas of a Wi-Fi router are pointed straight up, the Wi-Fi signals are redirected in a single direction. As a result, the antennas should constantly be pointed in different directions. Many Wi-Fi routers, for example, include two or more antennas. In such a scenario, make sure to point the antennas in vertical and horizontal directions, so that the Wi-Fi signals can cover a wider area
