Why does my RP2 keep disconnecting?

Just a few days ago, my RP2 was functioning properly, but now it keeps disconnecting from the WiFi network repeatedly. I attempted to forget the network, reset the network settings, and even factory reset the device last night. However, nothing seems to be working as it continues to disconnect and reconnect constantly. I am certain that the WiFi network is not the issue since other devices in my home are connecting without any problems. What could be causing this issue, and how can I resolve it?