Can I change default SSID and Password on NOW internet gateway?

Hello, how are you @user_twsrym? Hopefully all is well. The NOW internet gateway is an XB3 modem, so you should be able to change the SSID and Password. A lot of settings can be managed "Only" from the Xfinity app, and some can be managed from the Admin Portal after signing into your router interface. Your SSID and Password will need to be updated using the Xfinity app. The following article will help us log into the Admin Portal if you need to.  http://10.0.0.1  will bring you to the sign page. Default credentials are Password: password and Username: admin. You will notice when signing into the Admin Portal you will see a message that says you need to sign into xFi to update specific settings, which is the Xfinity app. https://www.xfinity.com/support/articles/wifi-change-admin-tool