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Mediacom owned Netgear CM1000 has recent Very Slow Upload
I've had this modem for since October 2017 and it has done the job well up until about a month ago. Download speeds are all still great (130 megs, paying for 100), but upload is miserable... mostly ...
Not all of your downstream channels are locked and your upstream power is really low. You should be 35+ on the upstream. you're at 26.
Your logs would tell us more but it indicates a line issue at this point.
If your isp is saying "its not our lines, its the 3rd party modem" and won't fix it, I've had to actually rent a modem before to prove it was a line issue. Once its fixed, I simply returned the modem and put mine back in.
Not all of your downstream channels are locked and your upstream power is really low. You should be 35+ on the upstream. you're at 26.
Your logs would tell us more but it indicates a line issue at this point.
If your isp is saying "its not our lines, its the 3rd party modem" and won't fix it, I've had to actually rent a modem before to prove it was a line issue. Once its fixed, I simply returned the modem and put mine back in.
Interestingly I was able to kinda take your words and the lines from my stats page and get them to send out a tech... it won't be for a week, but that's better than getting the new modem, trying it out, seeing that it doesn't solve the problem and then waiting another full week after that.