Get the most out of Xfinity from Comcast by signing in to your account. Enjoy and manage TV, high-speed Internet, phone, and home security services that work seamlessly together — anytime, anywhere, on any device., Log in to manage your Xfinity account, access services, and troubleshoot devices seamlessly., To sign in, use your Xfinity ID (email, mobile, username) on the Xfinity app or in your account. You can also say “my account” into your Xfinity Voice Remote to see it on your X1 TV Box., It's easy to manage your services online, anytime with XFINITY My Account so you can spend more time enjoying the entertainment you love., Once directed to the login page, enter your Xfinity ID (this is typically your Comcast email address or username) and your password. This should be the same ID and password you used during your initial registration or account setup., You'll need to enter your Comcast email address and password, as well as the incoming and outgoing server settings provided by Comcast. Mobile App: Comcast also provides a mobile app for accessing your email on the go..