not connected - Time Warner Internet

This question is about "not connected", with Time Warner Cable internet and apps. I may have posted about this before but i went to twc my account activate and troubleshoot services it show the modem not connected with a red dot then i pushed troubleshoot this is what come up is this normal when you buy your own modem?
Critical Status
Your modem is operating below our optimal performance standards and normal troubleshooting steps may not solve the issue. Please chat with an agent so that we can help you.

This topic covered not connected, and TWC cable internet service.