NETGEAR Nighthawk RS300 Wi-Fi 7 router Wi-Fi keeps disconnecting

The checks in more detail

Give each band its own name in the router settings so you can pin a stubborn device to the 5 GHz band or the 2.4 GHz band. The RS300 is a tri-band Wi-Fi 7 router, and devices that do not support the newest features sometimes misbehave with settings such as MLO or wide channels, so as a test set the 5 GHz band to a standard width such as 80 MHz. Channels and placement matter. A congested 2.4 GHz band in a flat block drops devices at busy times, so change its channel to 1, 6 or 11 in the Wireless settings and avoid Auto if it keeps hopping.

Place the router in an open central spot, off the floor and away from microwaves, cordless phones and metal shelves. Update the firmware, but note the community threads about problem releases, so read recent posts before you update. Disable features you do not need while testing, such as smart connect and QoS, and re-enable them one at a time. If a device drops only after sleeping, check its own power saving settings. A device that keeps dropping on its own and works on another network needs a driver update. If nothing helps, back up the settings and factory reset, then set up again;

a persistent drop on all devices points to the router hardware. When you change one setting, wait a full day before the next, because drops that happen once a day cannot be judged in an hour. Write down what you changed and whether the pattern moved. Compare a device that drops with one that does not, in the same room: if both are affected, the router or the channel is the cause, and if only one, the device is. Check also that the device's Wi-Fi adapter driver or system software is current, as many drops are fixed by a device update and not a router change.