A technician is troubleshooting an Android smartphone that repeatedly drops its Wi-Fi connection whenever the user walks into the kitchen. The problem is noticeably worse when a microwave oven is running, but other devices on the same wireless network remain connected. Which of the following is the MOST likely cause of the disconnections?
Interference from the microwave operating on the 2.4 GHz band
A scheduled Airplane mode is turning wireless radios off
Incorrect time-zone settings are preventing authentication
The phone's battery-saving mode is disabling Wi-Fi at low charge
Microwave ovens emit electromagnetic radiation in the 2.4 GHz band, the same frequency used by many Wi-Fi networks. When the microwave is active, it can introduce enough interference to degrade signal quality and force the phone to disconnect. Battery-saving features, scheduled Airplane mode, and incorrect time-zone settings do not selectively disrupt Wi-Fi only near a microwave or only for one device, so they are less likely causes of the observed symptom.
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