My Cable Modem Router will only let one device connect to the internet

My internet service was down last night (Comcast's fault), but since it came back my laptop is the only connected device that is able to connect to the internet. My desktop, iPhone, and my wife's laptop and iPhone all show they are connected to the wifi network, but none of them are able to access the internet.

When the internet came back on, I got a prompt on my laptop to create a new Netgear Genie admin username and password, which I did, but in browsing the settings I'm not seeing any reason my other devices can't get online.

What changed overnight? Please help. Thank you in advance.