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Forum Discussion
CM1150V Downlink Light Flashing
My CM-1150V Cable Modem has in issue where the downlink light starts flashing, but everything is working correctly. The modem status shows no issues. When this happens, I've received two CM-STAT...
Has a power OFF of the modem for 1 minute then back on change the LED behavior?
Try a factory reset as well...
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
I usually just reboot the modem to clear the flashing light.
Xfinity is totally worthless. Their answer is to reset my wireless router.