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Forum Discussion
CM1200 Downlink light blinking
Hi All, Ive searched the previous threads for how others who have encountered similar issue-- and it appears everyone has a different solution. My ISP (Optimum) unfourtunately claim they cannot help...
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.
https://community.netgear.com/t5/Cable-Modems-Routers/General-info-and-Troubleshooting-for-Cable-Modems/m-p/1530376#M12853