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Forum Discussion
Red power light on C7100V cable voice modem router - help please!
I have a C7100V AC1900 cable voice modem router installed on a Comcast Xfinity cable connection. It is less than 5 months old. It is plugged into a Tripp Lite Isobar surge suppressor. Firmware updates are provided by Comcast for this model and cannot not be user-initiated. The C7100V has worked well with one exception.
On two occasions, when the electrical power has gone out briefly during wind storms, the C7100V does not re-boot automatically when power is restored. Instead, the modem remains off, completely non-functional, disconnected from the internet with the power LED a solid red color. The first time this happened, I pulled the power plug off the back of the modem and plugged it back in. The power LED stayed red. Then I waited a couple of minutes and pulled the plug end of the power cord off of the surge suppressor and plugged it back in. This started the normal boot process and the C7100V returned to service.
Now, the same thing has happened again, about a month later. I haven't yet tried to restart the modem.
Why is this happening? Why can't the modem immediately recover from a power outage? Is this a bad hardware issue?
I see that after 90 days from purchase date, there is no phone, chat or email support available from Netgear, even though the item is still under warranty. So I guess this forum is my only hope for help!
4 Replies
Hello....I had the same thing happen....manual says red light means overheating....although mine did the same thing during power blip. I did get it reboot each time however, after powering down...waiting about 30 seconds and firing back up. Also be aware of another issue I had. Voice calls began breaking up....comcast visited several times.....all wiring was OK...they eventually installed another modem I now use for voice only. there is apparently an issue with thsi model and comcast voice.
Thanks for letting me know, BZpbp. Good to know this behavior may not be limited to my particular device. But, as you are having the same issue when power goes off, it indicates to me that maybe there is something wrong with the design that prevents it from rebooting when power is back on. I don't think this is related to overheating, since mine ran for many weeks without issue. Only when there is a power failure does it fail to reboot.
Did you ever contact Netgear about this issue? I can't figure out how to do that as after 90 days you have to sign up for a service contract just to be able to contact them. This seems very unfair as the unit has a warranty longer than that. Do you know of a phone number for them for warranty service or claims?
I haven't yet noticed anything awry with the voice service. How did you learn that there is apparently an issue with this model and Comcast voice service, apart from your own experience of course. Did the Comcast service people mention it?
I did not contact netgear about the red light issue, since mine booted back up. I did contact them about the voice issue, and got no satisfaction. I came to my own conclusion on the voice issue....since I even swapped out the Netgear modem for a new one (thinking there was a defect), and the second one did the same thing. All issues disappeared when a separate voice only modem was installed. someone from Netgear did contact me saying they wanted to work with me....I provided my info...and never heard from them.
