I'm having the same issue - all day I have not been able to get logged in - error pops up 'We're having some trouble logging you in - Try Again'... so frustrating! I did uninstall and re-install with same results.
Thanks for reaching out. I was able to pull up your account & see successful app activity since you posted. Are you still experiencing any issues with the Xfinity Home app?
Thanks for taking the time to post. I pulled up your account and will Private Message you with more information. Private messages can be accessed by clicking on the envelope icon in the upper right hand corner of any forums page.