Step 1: Check Which Router You’re Actually Logged Into Open your browser and try accessing the login page via any of these: 192.168.1.1 10.0.0.1 (This is often the default for Xfinity routers) routerlogin.net (for Nighthawk) https://nighthawkmesh.com/why-your-nighthawk-password-isnt-working-after-a-xfinity-update/