Model is actually AC1900 but that model wasn't in the dropdown. Firmware is current. Unit is set up as an access point. I have a Mac (OS Big Sur) and a Windows 10 laptop right next to each other, and a Canon printer in the same room. The Mac connection is stable. My Windows laptop and my printer frequently lose connectivity to the access point and the only way to resolve it is to unplug the access point and plug it back in. I have to do this at least once a week. Since it happens with two different kinds of devices (a laptop and a printer) my thinking is that the issue isn't with that hardware but something to do with the access point. Any thoughts? Network adapter on the Windows laptop has the latest driver.