NETGEAR is aware of a growing number of phone and online scams. To learn how to stay safe click here.
Forum Discussion
CM1200 New high MS
Hello all,
I am currently using a CM1200 modem and an Asus RT-5300 router. I haven't been at this house for a month yet and I have had issues with the Optimum services since I had initially had them installed. I had issues with the internet using my old CM500 when running ping tests there were time outs and ms spikes while gaming. The tech told me my modem was bad, so I replaced it. The same issues were still present after the change. A technician had replaced wiring from the line to the house, I also found splitters going into the attic so I quickly disassembled those leaving the only entry point being in the living room, where my gaming pc is. I am hard wired 5 feet away from the modem/router and cannot seem to have any luck. I have never experienced issues while being hardwired until I had moved here.
My equipment worked fine at my old house before the move. Currently, I upgraded from the 500 download mbps 35 upload mbps to the 1 gigabit download/50 upload mbps. I had configured my MAC address with the tech over the phone and got my upgraded internet last night. I was experiencing minimum 50 ms up to 400 ms spikes last night while gaming. I checked the modem logs this morning and was wondering if these are something to contact them about?
| Fri Sep 25 09:33:00 2020 | Notice (6) | DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=08:36:c9:42:e9:60;CMTS-MAC=00:af:1f:1f:7b:28;CM-QOS=1.1;CM-VER=3.1; |
| Fri Sep 25 09:32:55 2020 | Warning (5) | DHCP WARNING - Non-critical field invalid in response ;CM-MAC=08:36:c9:42:e9:60;CMTS-MAC=00:af:1f:1f:7b:28;CM-QOS=1.1;CM-VER=3.1; |
| Time Not Established | Notice (6) | Honoring MDD; IP provisioning mode = IPv4 |
| Time Not Established | Critical (3) | SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=08:36:c9:42:e9:60;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1; |
| Fri Sep 25 06:25:20 2020 | Notice (6) | DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=08:36:c9:42:e9:60;CMTS-MAC=00:af:1f:1f:7b:28;CM-QOS=1.1;CM-VER=3.1; |
| Fri Sep 25 06:25:15 2020 | Warning (5) | DHCP WARNING - Non-critical field invalid in response ;CM-MAC=08:36:c9:42:e9:60;CMTS-MAC=00:af:1f:1f:7b:28;CM-QOS=1.1;CM-VER=3.1; |
5 Replies
do you also have your cable connections page info?
If there was splitters in the attic, i'd try to connect right where the coax enters the home. I've seen older coax in homes cause issues
So here's a better explanation. telephone Line to house > Outside splitter that splits to attic/living room > Travels through the wall to the Inside splitter in my living room > My modem/router. The outside splitter had a cable going into the attic in which i disconnected everything in the attic, but I didn't remove that cable. Should I pursue removing that cable from the outside splitter?. Are you asking to disconnect the living room splitter and connect that cable directly to my modem? Thanks in advance. Cable connections page:
Apply Frequency start Value This 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 Startup Procedure
Procedure Status Comment Acquire Downstream Channel 609000000 Hz Locked Connectivity State OK Operational Boot State OK Operational Security Enabled BPI+ IP Provisioning Mode Honor MDD honorMdd(4) Downstream Bonded Channels
Channel Lock Status Modulation Channel ID Frequency Power SNR Correctables Uncorrectables 1 Locked QAM256 14 609000000 Hz 1.6 dBmV 40.3 dB 0 0 2 Locked QAM256 1 519000000 Hz 4.3 dBmV 42 dB 0 0 3 Locked QAM256 2 525000000 Hz 4.2 dBmV 41.9 dB 0 0 4 Locked QAM256 3 531000000 Hz 4.1 dBmV 41.9 dB 0 0 5 Locked QAM256 4 537000000 Hz 4 dBmV 41.8 dB 0 0 6 Locked QAM256 5 543000000 Hz 3.7 dBmV 41.7 dB 0 0 7 Locked QAM256 6 549000000 Hz 3.6 dBmV 41.6 dB 0 0 8 Locked QAM256 7 555000000 Hz 3.4 dBmV 41.4 dB 0 0 9 Locked QAM256 8 561000000 Hz 3.2 dBmV 41.3 dB 0 0 10 Locked QAM256 9 567000000 Hz 3 dBmV 41.1 dB 0 0 11 Locked QAM256 10 573000000 Hz 2.9 dBmV 41.1 dB 0 0 12 Locked QAM256 11 579000000 Hz 2.6 dBmV 40.9 dB 0 0 13 Locked QAM256 12 585000000 Hz 2.4 dBmV 40.8 dB 0 0 14 Locked QAM256 13 603000000 Hz 2.1 dBmV 40.5 dB 0 0 15 Locked QAM256 15 615000000 Hz 1.4 dBmV 40.1 dB 0 0 16 Locked QAM256 16 621000000 Hz 1.3 dBmV 40 dB 0 0 17 Locked QAM256 17 627000000 Hz 1.2 dBmV 40 dB 0 0 18 Locked QAM256 18 633000000 Hz 0.8 dBmV 39.9 dB 0 0 19 Locked QAM256 19 639000000 Hz 0.8 dBmV 39.9 dB 0 0 20 Locked QAM256 20 645000000 Hz 0.7 dBmV 39.8 dB 0 0 21 Locked QAM256 21 651000000 Hz 0.6 dBmV 39.7 dB 0 0 22 Locked QAM256 22 657000000 Hz 0.3 dBmV 39.6 dB 0 0 23 Locked QAM256 23 663000000 Hz 0.4 dBmV 39.7 dB 0 0 24 Locked QAM256 24 669000000 Hz 0.5 dBmV 39.8 dB 0 0 25 Locked QAM256 25 675000000 Hz 0.5 dBmV 39.1 dB 0 0 26 Locked QAM256 26 681000000 Hz 0.2 dBmV 39.7 dB 0 0 27 Locked QAM256 27 687000000 Hz 0.3 dBmV 39.6 dB 0 0 28 Locked QAM256 28 693000000 Hz 0.3 dBmV 39.7 dB 0 0 29 Not Locked Unknown 0 0 Hz 0.0 dBmV 0.0 dB 0 0 30 Not Locked Unknown 0 0 Hz 0.0 dBmV 0.0 dB 0 0 31 Not Locked Unknown 0 0 Hz 0.0 dBmV 0.0 dB 0 0 32 Not Locked Unknown 0 0 Hz 0.0 dBmV 0.0 dB 0 0 Upstream Bonded Channels
Channel Lock Status US Channel Type Channel ID Symbol Rate Frequency Power 1 Locked ATDMA 1 5120 Ksym/sec 14000000 Hz 32 dBmV 2 Locked ATDMA 2 5120 Ksym/sec 22000000 Hz 33.8 dBmV 3 Locked ATDMA 3 5120 Ksym/sec 28400000 Hz 34.8 dBmV 4 Locked ATDMA 5 2560 Ksym/sec 39800000 Hz 35.3 dBmV 5 Not Locked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV 6 Not Locked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV 7 Not Locked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV 8 Not Locked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV Downstream OFDM Channels
Channel Lock
StatusModulation /
Profile IDChannel
IDFrequency Power SNR /
MERActive Subcarrier
Number RangeUnerrored
CodewordsCorrectable
CodewordsUncorrectable
Codewords1 Locked 0 ,1 ,2 ,3 159 714000000 Hz 0.0 dBmV 38.8 dB 1588 ~ 2507 78866564 11582643 0 2 Not Locked 0 0 0 Hz 0 dBmV 0.0 dB 0 ~ 4095 0 0 0 Upstream OFDMA Channels
Channel Lock Status Modulation / Profile ID Channel ID Frequency Power 1 Not Locked 0 0 0 Hz 0 dBmV 2 Not Locked 0 0 0 Hz 0 dBmV Extended Upstream Transmit PowerEnable Extended Upstream Transmit Power
Current System Time:Fri Sep 25 10:38:11 2020System Up Time:01:05:53
you've got low upstream and a bit of variation in the downstream.
I'd remove the outside splitter and just off the cable going to the living room. If its needed for cabler tv, just for the time being, don't use it. Just go cable----->modem. with no splitters. See how it works and after using it for a bit, then rerun the logs and cable connections page. See how stable it stays.
Sorry, I also failed to state the wiring from the line to the house has been replaced as well.
