You are the IT administrator of a small office. A group of users in a secluded part of the building is reporting intermittent wireless connectivity that worsens throughout the day. These users connect their devices to a Wi-Fi extender, which has not been moved or adjusted recently. Considering the scenario, which action should you take first to troubleshoot this issue?
Switch all affected devices to an alternate Wi-Fi channel and monitor for improvements.
Examine the Wi-Fi extender for signs of overheating, such as a high surface temperature or operational instability as the day progresses.
Update the extender's firmware to the latest version available, regardless of the current issue's symptoms.
Immediately replace the Wi-Fi extender assuming it has become faulty without further investigation.