I have reset my modem and have rebooted my modem and I am still receiving no power signal.  The mdrm has a solid blue light on.  How do I  resolve this issue?   Do I need to replace my modem? My devices show signal strengths between 2-4 bars. My internet  does drop service 3-4 times daily.    I do have internet service and my cable provider has shown me that the signal strength is good. Thank you