NETGEAR is aware of a growing number of phone and online scams. To learn how to stay safe click here.
Forum Discussion
acfc47
Jul 30, 2021Aspirant
CM1000 v2 4/5 lights blinking quickly
I recently got a new CM1000v2 modem, to replace the modem/router combo I had been renting from Cox. After hooking it up, the power light blinks green and the three lights below it blink amber while t...
- Jul 30, 2021
If you checked all that and a different modem is working and the CM is not, i would presume the CM modem maybe faulty. Possible the Power adapter tot he CM could be faulty. Something to try with a different same spec power adapter and see. If this still fails, the CM needs to be replaced.
acfc47
Jul 30, 2021Aspirant
Hi, thanks for the response.
I did unplug the modem for a minute while trying different things. I am assuming that the coax line and connection are good because immediately before activating this modem, the Arris TG1682G that I was (and still am) renting from my ISP worked properly on the same line into the hous, also there are no splitters. When I was talking with the ISP tech we ran through the same steps you mentioned, but the modem remained offline (with the lights continuing to blink as always; the lights begin blinking immediately when it is plugged in to power and that has never changed). Eventually I just asked him to reactivate the Arris for now and it worked immediately. So are you suggesting that line/connection up to the modem could potentially work fine for the Arris but not the Netgear hardware?
FURRYe38
Jul 30, 2021Guru - Experienced User
If you checked all that and a different modem is working and the CM is not, i would presume the CM modem maybe faulty. Possible the Power adapter tot he CM could be faulty. Something to try with a different same spec power adapter and see. If this still fails, the CM needs to be replaced.
- acfc47Jul 30, 2021Aspirant
Ok, that makes sense. I did try it (mistakenly) with a different brand new power supply that is 12v 2.5A, like I mentioned earlier. Do you think that would be a sufficient test to know whether the problem is the power supply, or would trying a different 12v 1.5A power supply (which is the spec it came with) be the only way to know for sure?
Again, thanks for your help.
- FURRYe38Jul 30, 2021Guru - Experienced User
1amp higher isn't going to make a difference, if there power supply doesnt' change the behavior, then the CM needs to be replance. Something to ask NG about to see what your options are.
- acfc47Jul 30, 2021Aspirant
Ok great, thanks for the confirmation and troubleshooting. I'll get in touch with Netgear directly now.