Wi-Fi speed slows down when lid is closed

Solution 1:

Wifi antennas are usually present on the bezels of your laptop screen. So when your screen is open, the antennas are in the upright position making it the most optimal way for receiving wifi signals. On closing your laptop screen, your antennas are in a flat horizontal position making them inefficient to receive signals, thereby lowering your wifi speed.

I can give you 3 solutions for solving this problem:

1. Leave the laptop screen open.
2. Close the laptop screen and lean your laptop against a wall or any other object such that your antennas remain in a vertically upright position.
3. Use an external USB Wifi dongle and keep it oriented in the best position.