ComCast TV Remote App (iOS) doesn't let me log in?

Hello again kensden,

Please check out these Comcast sites courtesy of Comcast_John for additional information:
 

Set up the XFINITY TV Remote App

http://customer.comcast.com/help-and-support/xfinity-apps/setting-up-the-cable-tv-app/

XFINITY TV Remote App Eligible Set-Top Boxes

http://customer.comcast.com/help-and-support/xfinity-apps/eligible-cable-boxes-cable-tv-app

Top Tips for Using the XFINITY TV Remote App

http://customer.comcast.com/help-and-support/xfinity-apps/top-tips-for-cable-tv-app

I have read in some special forums that it may take a few times to login to the Comcast Remote App Video Server due to the volume of customer usage.

Hope this helps you out. 

I'm having this same problem.  I've been over the docs several times and I'm doing everything correctly.

However the remote app does not recognize my @cmacfresno.comcastbiz.net email address.

Hi cmacfresno.  The remote app is for use with the  "X1 Entertainment Operating System", currently for residential customers, and utilizes the @comcast.net email address for access. Please let me know if your current set-up has the "X1 Entertainment Operating System" or if additional assistance is needed with your service.

Thank You

These are the business class support forums, so of course I don't have residential service, I have business service.