Error code 14001
firestick has never been an approved xfinity stream TV app device (unsupported).
Hi @eawimbush, thank you for reaching out on the forum. Firestick is not supported at the moment (please refer to https://www.xfinity.com/support/articles/xfinity-tv-app-requirements). If you are getting error 14001 on your other device(s) , please go to your device settings and update your iOS version to at least 12.0, or update your Android version to at least 5.0. Then download the latest version of the app in the App Store, the Google Play Store or the Amazon Appstore accordingly.
You've been using the app built for Android phones all this time.
I wish Xfinity would just provide an official app for FireStick. I have a new model Roku as well and it has the Xfinity app, but its wifi performance is nowhere near as good as my FireStick. My Roku drops signal completely all the time while the Fire locks on and pumps out conistent 4K like a champ.