Can't access gateway login page at 10.0.0.1

Browsing to http://10.0.0.1 used to take me to the gateway (router) login page.  Now it just displays a page saying "To manage your gateway settings and other features, please download the Xfinity xFi app."  I don't know why this changed, but it was within the past 10 days. 

I can't use the app, because I don't have a smartphone.  I want to be able to manage the gateway settings through a web browser.  I can get to the most important settings (such as WiFi name and password) through xfinity.com, but I would like to be able to access all the settings.