You are most likely to encounter a couple of situations where you cannot log into 10.0.0.0.1 Xfinity or Comcast router: can’t reach this page error, the page returns 404 connection timeout, or you may see the login form, but you can’t log into it. Both situations will be discussed here in this blog, along with their solutions. https://www.routerblogs.com/10-0-0-0-1/