Aggressive roaming is a configuration setting in wireless network adapters that determines how quickly a device—such as a laptop or mobile phone—seeks out and switches to a different wireless access point (AP) with a stronger signal. While standard roaming allows a device to transition between APs as it moves, "aggressive" settings lower the signal strength threshold that triggers a scan, making the device more prone to jumping between connections even when the current signal is still usable. How Aggressive Roaming Works

The device leaves a “good enough” connection to chase a “slightly better” one.