Troubleshoot help needed

First, I use Spectrum TVE, or cable TV, with a QNAP server running channels app, today it just failed and quit working, I also have HDHome run 3 tuner box running with my network, the HDHOMERUN left light is flashing, this means it’s not getting a ip address from the router, it dose not show up in the router software, any help with this please… ONE BIG QUESTION IS WHY DO I NEED A TUNER BOX IF I’m LOGGED IN WITH MY SPECTRUM ACCOUNT, I never questioned this before since it’s always worked and recorded my shows.. I don’t think my HDHR is broken, besides I’ve tried a spare I have, So where did my channels ability to stream throughout my home to all devices,, please hurry I’m really frustrated..!