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chesta1271's avatar
chesta1271
Tutor
Jun 09, 2021

CM1200 Downstream Light Blinking

I am having the same problem that another person posted - the Downstream light is blinking steadily at a slow pace and intermittenly since Friday June 4, 2021 service drops.  When Service is up, my s...
FURRYe38's avatar
FURRYe38
Guru - Experienced User
Jun 09, 2021

Please post a copy and paste of the modems connection status page.
Have the ISP check the signal and line quality UP to the modem. Be sure the ISP provisions the modem correctly.
Be sure there are no coax cable line splitters in the between the modem and ISP service box. 
Be sure your using good quality RG6 coax cable up to the modem. 
Be sure to power OFF the modem for 1 minute them back ON.
https://community.netgear.com/t5/Cable-Modems-Routers/General-info-and-Troubleshooting-for-Cable-Modems/m-p/1530376#M12853
https://highspeed.tips/docsis-events/

 

You might disconnect the wifi router from the modem and then do a factory reset on the modem, press the reset button for 10 seconds then release. Just leave it and see if it connects and check the downstream LED. Should go solid ON.