emergency alert system not working - Time Warner TV

This question is about "emergency alert system not working", with Time Warner Cable TV and apps. The emergency alert system is not activating properly on my two set top boxes in Cincinnati Ohio. Everytime it activates it just shows a black blank screen on both my boxes but it does not display the message and it does not sound the EAS tone. I have a Technicolor 9865HDC and a Cisco 4742HDC both boxes are having this issue.

This topic covered emergency alert system not working, and TWC cable tv service.