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Forum Discussion
Modem Connection Drop
Just upgraded to Xfinity Gig internet speed. Bought a CM1150V modem to accomodate 1gbps speed and replaced my Arris Surfboard. Install of CM1150V was long and difficult but Xfinity finally recognized...
Thank you Plemans for your assessment. I will do that when/if (fingers crossed) it happens again.
The problem usually happens in the very early morning hours (3 a.m.) and lasts until about 10 a.m. This morning, I did a factory reset as well as a full reboot of the modem and the router. From about 10:30 a.m. until this evening, I have been getting a glorious performance (950 mbps/40mbps). When the new modem and new router are able to do their stuff, it is truly amazing!
I am beginning to think it may be the cable node just outside my house. The cable guy says the coaxial cable looks to be in good shape (it was installed only 2 years ago) and it is appropriate for gig speed. The cable node however is likely the original from 1984 when the street was built. A work order is in for installation of a new cable line and node box. Cable guy says this will definitely improve things with consistent performance. I will keep you up to date.
Thanks again! :)
Update: A new cable line was installed last Thursday and a technician was out here yet again to check the line and signal (3rd time). All seems to be good and Xfinity had no other customers in the area with my problem and there have been no outages. With my Arris Surfboard, I never experienced one issue with connectivity in 2 years. I have come to the conclusion this is a faulty modem and will ask for a replacement. This modem took about eight hours to finally connect with Xfinity when I installed it and I should have seen the writing on the wall then. Still awaiting instructions back from Netgear and will reinstall my Arris while I await a new modem.
Once again at 5 a.m., I tried to access the internet and found the usual "no internet connectivity" or abysmally slow speed (1mbps). Frustrated, I reinstalled my Arris Surfboard and Nighthawk R7000. NO issues whatsoever today. Speed is slower (~500-600mbps) but I will take that. Internet access is consistent so I let Netgear know that it HAD to be a faulty modem. After reviewing all of my logs, efforts to factory reset, reboot and have Xfinity come out 3 times to include laying a new cable line, I was issued a RMA# and will receive a replacement CM1150V. At that point, I will also reinstall my new Nighthawk AX6 (AX5400). When the modem was working, I easily received 950mbps/50mbps. I will give an update when that happens. Fingers crossed. Stay tuned.
Ok, so my replacement modem was delivered today. I set it up with the help of Xfinity over the phone. Took a good 45 minutes and several reboots but it IS up and running. Good speeds (940/45) and so far, consistent. I just hope this holds. It seems others have said theirs have crapped out weeks to months after the fact. I really really hope that is not the case here. My old surfboard maintained a consistently fast download speed prior to the arrival of this replacement modem. I really want this one to work because it is a REALLY good modem when it works.
Update: Well, the old "Started Unicast Maintenance Ranging - No Response received - T3 time-out" log message is consistently displayed with this replacement modem. Trying to stream Xfinity T.V. this morning on my tablet found several stream disruptions and "no connection to internet" messages. I am convinced this modem is a fine piece of equipment when it works but the problem lies between Netgear and Xfinity compatibility. Both companies really need to hammer out the bugs with this product, as I am hardly alone with my issue. I will continue to use it even though I have mediocre, sporadic service. If it becomes unbearably inconsistent like my first CM1150 modem, I will just reinstall my old Arris Surfboard which has been reliable. This modem will just become an expensive paperweight in my home office with the hopes that one day, Xfinity and Netgear can produce a reliable interaction between their products and provide a firmware udate. Netgear was eager to close their ticket, so I just told them to go ahead since I am done trying to figure this out for both companies.