TWC Roku channel not working - TWC TV and Apps

Everything was working fine this afternoon, and this evening the TWC Roku channel suddenly had a "tour" and then prompted me to add my username and password, and then denies me access by saying it is only for users in their home with a TWC authorized modem. I am home and all the other channels that require the TWC login/psswrd are functioning fine, as is the internet and cable TV. I double checked my username psswrd on the TWC website and they are correct -- any ideas on how to fix??

This question is about "TWC Roku channel not working", with Time Warner Cable TV and apps.