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Forum Discussion
Royalh13
Jan 28, 2018Star
Comcast/Xfinity Says Hardware problem with CM1000 - Offshore Netgear support says "No Problem"
Netgear Existing Case # 29644403 (via phone call) Summary: Comcast/Xfinity technician says there's an issue with my CM1000 because of high TX power levels (see screenshots). However Netgear's of...
- Feb 01, 2018
It is a possibility of a hardware issue but comparing it to the cable box may not be a great way to know or not since the cable box is less sensitive with the signal levels for it to work compared to a modem. But if you believe that the tech has done everything he can to fix the signal then you may want to work with Netgear support and get a RMA.
DarrenM
Royalh13
Feb 01, 2018Star
Hi Darren,
thanks for confirming!
The question i'm looking to get answered though, is whether or not there could be a hardware issue with my CM1000, as the Comcast technician stated, because my upstream transmit power levels are higher than what they should be.
As a reminder, my CM1000 and the Comcast/Xfinity Cable Box both come off of the same splitter and the Cable Box is transmitting at the correct power levels (correct according to Comcast) whereas my CM1000 is transmitting at higher power levels which Comcast's diagnostic tests (screen shots in OP) indicate as being outside specs.
In response to your suggestion about removing the splitter; the CM1000 logs i posted above are comprised of events that happened when the CM1000 was on an outlet all by itself with NO splitter AND when it WAS connected via a splitter.
All of the events that happened when the CM1000 was on an outlet all to its own, are the ones prior to the 1/30/2018 date - the bottom 26 events.
All of the events that happened on 1/30/2018 & 1/31/2018 are when the CM1000 was sharing the outlet with the Cable Box, via a splitter.
The Comcast techs did fix something at the outside junction box for the apartment building, the downstream amplifier I think, which may explain why the number of timeouts decreased substantially in the 1/30 - 1/31 event logs.
So I guess the very root question is this:
Is there a hardware issue with my CM1000 since it's transmitting at higher levels that the Cable Box is transmitting at, given that both devices are wired into the same splitter, as the Comcast tech believes?
I only have until tomorrow before the case is automatically closed, so if there's any chance it truly is a hardware problem, I'll need to call in (and wait on hold again) to request an exchange be sent to me.
DarrenM
Feb 01, 2018Sr. NETGEAR Moderator
It is a possibility of a hardware issue but comparing it to the cable box may not be a great way to know or not since the cable box is less sensitive with the signal levels for it to work compared to a modem. But if you believe that the tech has done everything he can to fix the signal then you may want to work with Netgear support and get a RMA.
DarrenM
- Royalh13Feb 02, 2018StarOk, thanks Darren! I'll just swap it out to be sure... If the errors keep popping up, I can then go yell at someone at Comcast...