Modem Connection Drop

Question

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 it. 950 mbps speed was immediate and steady for about a week. Suddenly, internet speed dropped intermittently to ~1-2mbps while streaming Xfinity TV on my tablet at 3 a.m.&nbsp; Then speed would suddenly blast back up to 950 mbps. Thought the problem was my 4 year old Nighthawk Router (R7000) so I bought a new Nighthawk (RAX50). Still have the problem. Mostly happens in the very early to mid morning hours for some strange reason. Xfinity says my connection is clear but plans to install a new underground cable line. Netgear tells me the problem is likely&nbsp;the number of locked and not locked channels in the upstream and downstream bonded channels. Xfinity has queried my modem and says it identified a timeout value for the boot file.&nbsp; This is driving me crazy and will just ask Netgear to send me a replacement modem once the cable line is laid.&nbsp; Anybody have similar experiences?&nbsp; Thanks

Badcorgi · Answer

Once again at 5 a.m., I tried to access the internet and found the usual "no internet connectivity" or abysmally slow speed (1mbps).&nbsp; Frustrated, I reinstalled my Arris Surfboard and Nighthawk R7000.&nbsp; NO issues whatsoever today.&nbsp; 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.&nbsp; 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.&nbsp; 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.&nbsp; Stay tuned.

plemans · Answer

do you have a screen snip of the cable connections page and logs? That actually helps check the line.&nbsp;

Badcorgi · Answer

I do.&nbsp; Please see below:&nbsp;

plemans · Answer

do you also have the cable connections page?

Badcorgi · Answer

Frequency start ValueThis field below allows you to modify the frequency the cable modem start with its scan during initialization and registration. Enter the new start frequency and restart the cable modem for it to take effect.Starting Frequency&nbsp;Startup ProcedureProcedureStatusCommentAcquire Downstream Channel591000000 HzLockedConnectivity StateOKOperationalBoot StateOKOperationalSecurityEnabledBPI+IP Provisioning ModeHonor MDDhonorMdd(4)&nbsp;Downstream Bonded ChannelsChannelLock StatusModulationChannel IDFrequencyPowerSNRCorrectablesUncorrectables1LockedQAM25620591000000 Hz3.3 dBmV43.2 dB002LockedQAM2568519000000 Hz3.5 dBmV43.5 dB103LockedQAM2569525000000 Hz3.4 dBmV43.5 dB104LockedQAM25610531000000 Hz3.6 dBmV43.6 dB305LockedQAM25611537000000 Hz3.6 dBmV43.6 dB106LockedQAM25612543000000 Hz3.5 dBmV43.5 dB107LockedQAM25613549000000 Hz3.4 dBmV43.4 dB108LockedQAM25614555000000 Hz3.4 dBmV43.4 dB109LockedQAM25615561000000 Hz3.4 dBmV43.4 dB0010LockedQAM25616567000000 Hz3.2 dBmV43.3 dB2011LockedQAM25617573000000 Hz3.2 dBmV43.3 dB1012LockedQAM25618579000000 Hz3.2 dBmV43.3 dB0013LockedQAM25619585000000 Hz3.3 dBmV43.2 dB1014LockedQAM25621597000000 Hz3.3 dBmV43.1 dB2015LockedQAM25622603000000 Hz3.5 dBmV43.2 dB0016LockedQAM25623609000000 Hz3.6 dBmV43.2 dB0017LockedQAM25624615000000 Hz3.5 dBmV43.1 dB0018LockedQAM25625621000000 Hz3.4 dBmV42.9 dB0019LockedQAM25626627000000 Hz3.3 dBmV42.8 dB0020LockedQAM25627633000000 Hz3.5 dBmV42.9 dB0021LockedQAM25628639000000 Hz3.5 dBmV42.9 dB1022LockedQAM25629645000000 Hz3.6 dBmV43 dB0023LockedQAM25630651000000 Hz3.7 dBmV43.1 dB0024LockedQAM25631657000000 Hz3.5 dBmV42.9 dB0025LockedQAM25632663000000 Hz3.5 dBmV42.9 dB0026LockedQAM25633669000000 Hz3.4 dBmV42.8 dB0027LockedQAM25634675000000 Hz3.2 dBmV42.3 dB0028LockedQAM25635681000000 Hz3.3 dBmV42.8 dB0029LockedQAM25636687000000 Hz3.5 dBmV42.9 dB0030LockedQAM25637693000000 Hz3.6 dBmV43 dB0031LockedQAM25638699000000 Hz3.5 dBmV42.9 dB0032Not LockedUnknown00 Hz0.0 dBmV0.0 dB00&nbsp;Upstream Bonded ChannelsChannelLock StatusUS Channel TypeChannel IDSymbol RateFrequencyPower1LockedATDMA15120 Ksym/sec17300000 Hz48 dBmV2LockedATDMA25120 Ksym/sec23700000 Hz49.5 dBmV3LockedATDMA35120 Ksym/sec30300000 Hz49.8 dBmV4LockedATDMA45120 Ksym/sec36700000 Hz49.8 dBmV5Not LockedUnknown00 Ksym/sec0 Hz0.0 dBmV6Not LockedUnknown00 Ksym/sec0 Hz0.0 dBmV7Not LockedUnknown00 Ksym/sec0 Hz0.0 dBmV8Not LockedUnknown00 Ksym/sec0 Hz0.0 dBmV&nbsp;Downstream OFDM ChannelsChannelLockStatusModulation /Profile IDChannelIDFrequencyPowerSNR /MERActive SubcarrierNumber RangeUnerroredCodewordsCorrectableCodewordsUncorrectableCodewords1Locked0 ,1 ,2 ,348850000000 Hz3.2 dBmV41.9 dB1108 ~ 298724354431814527238502Not Locked000 Hz0 dBmV0.0 dB0 ~ 4095000&nbsp;Upstream OFDMA ChannelsChannelLock StatusModulation / Profile IDChannel IDFrequencyPower1Not Locked000 Hz0 dBmV2Not Locked000 Hz0 dBmV&nbsp;Current System Time:Wed Sep 23 13:27:32 2020System Up Time:05:52:41

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Modem Connection Drop

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