Don't install Wi-Fi devices in places or in ways that would interfere with high-speed Internet access. Specifically, a typical example of a place where you should not place Wi-Fi devices is around places where water is used. It has been pointed out that electronic devices are at high risk of being destroyed by water damage, and that water easily absorbs radio waves. Therefore, avoid placing Wi-Fi equipment near places where water pipes are installed or where water pools, such as kitchen spaces, water tanks, and vases.
Also, avoid storing Wi-Fi devices in shelves or storage cases for appearance's sake, as the signal will be weakened if the Wi-Fi device is surrounded. In particular, metal tends to block radio waves, so avoid storing your Wi-Fi device in materials that easily block radio waves, such as steel or aluminum.
In addition, installing Wi-Fi devices near home appliances or devices such as microwave ovens, cordless landline phones, Bluetooth devices, etc. can cause unstable internet communication. Wi-Fi devices and those home appliances or devices may be using the same frequency band. The Wi-Fi device and the appliances or devices may be using the same frequency band, so there is a risk that they may cancel each other's signal and cause extremely slow internet communication when using a microwave oven. In addition, installing a Wi-FI device near a window is not recommended because the radio waves will escape out of the window glass and there is a risk that the Wi-Fi device will be exposed to high heat due to direct sunlight, resulting in abnormal performance. Avoid placing the device in the corner of the room as well, as there will be many places where the signal cannot reach. Floor-mounted devices make it difficult for the signal to reach the entire area. In addition, there is a risk that the signal will be reflected or absorbed by building materials such as insulation, so it should be avoided. For this reason, it is recommended to install the device at least 1 meter above the floor level.