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Forum Discussion
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...
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.
We have had this Modem for almost 1 year and this is the first time anything like this has happened.
It started Friday June 4, 2021 - At the direction of Spectrum, I unplugged the Router, Unplugged the Modem, let it sit for 2 minutes, then reconnected. After everything came back up about an hour later it happened again - so I repeated the steps. On Friday about every few hours the internet would go down. Then it happened Saturday so I repeated those steps again - On Monday I called Spectrum again and they set up appointment for tech to come out yesterday - he hooked his device up to the line and said everything was fine. He connected it to the Modem, was able to verify the drops BUT said that everything appeared fine there too - He confirmed that the Modem coax is a dedicated line and not attached to any splitters ( we no longer have Spectrum TV Service - Internet only) I will be calling them every time this event occurs
here is the Connection Status as well as the Event Log