If you fail to log in 3 times in a row, you are sure that your username and password are correct, then you should stop logging in and contact customer service.
Ask them if there is a problem with their server or with your account. Remember not to keep trying after several failures, this may cause your account to be closed or cancelled.
· I’m having a similar issue. I’ve tried logging in on my wifi network as well as LTE, my wife and I both are taken to a screen that reads "You need to be authorized to access XFINITY Home, to continue the primary account holder has to grant you access." I am the primary account holder and we use the same login information on both of phones.
· Try logging into your Xfinity Mobile application or online account with your Xfinity Internet username and password. If you don’t know your Xfinity Internet credentials, or if for some reason you’re unable to access your Xfinity Mobile application or online account with that information, you can recover your Xfinity ID and password.
Make sure WiFi is On in your device settings. Make sure your device is connected to your in-home Xfinity network and not the Xfinity WiFi network or another wireless network by accident. Restart your device, open the Xfinity Stream app and see if the app recognizes that you’re now connected to your in-home …
Signing in to the Xfinity Home App. Download and install the Xfinity Home app, then open it. Enter your Xfinity ID (or email address) and password. If you’re the Primary Account Holder, you must sign in with the primary email address you used to establish your Xfinity Home account.