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Forum Discussion
HGinDC
Jul 05, 2021Guide
CM2000 Modem: blinking downstream light
Hello. I am using a Nighthawk CM2000 router (which, BTW, is not a listed model for the model dropdown) connected to a Nighthawk AX4 router. Periodically the downstream light on the modem starts blink...
HGinDC
Nov 04, 2021Guide
I checked the "Extended Upstream Transmit Power" box and it didn't make any difference. The Updtream light still blinks from time to time.
FURRYe38
Nov 18, 2021Guru
I would have your ISP check the service line up to the modem.
Seen others having similar problems with link LEDs blinking and were resolve by the ISP.
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.
https://community.netgear.com/t5/Cable-Modems-Routers/General-info-and-Troubleshooting-for-Cable-Modems/m-p/1530376#M12853
https://www.duckware.com/tech/solving-intermittent-cable-modem-issues.html
HGinDC wrote:
I checked the "Extended Upstream Transmit Power" box and it didn't make any difference. The Updtream light still blinks from time to time.
- RcanneNov 18, 2021Aspirant
Thank you for the feedback, but like I said, I have tried and done it all. You name it I've done it. It has become quite obvious that this particular modem has an issue. I have other rather decent modems and none of them suffered from this problem. So, again is their anyone out there that can answer this rather straight forward question: So, with the blinking downstream light, and that the modem is working just fine, should I stop concerning myself over this issue? YES? or NO?
- FURRYe38Nov 18, 2021Guru
Up to you.
Personally, if it's working, leave it.Something else to try. Try a different modem and see if same thing happens. Can be telling.
- RcanneNov 18, 2021Aspirant
Thank you, that is my thought also, but it is nice to hear an agreement. I did switch back to my previous ASUS, which granted is a little slower, but the issue was not present. When I went back to the Nighthawk the light stayed solid for a week, and then went back to it;s old ways. I'm tired of rebooting it and will just not worry about it anymore. Thanks again for your response.
- FURRYe38Nov 18, 2021Guru
Keep an eye on things, if you notice something going wrong, get it checked out.