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Forum Discussion
Time to Replace CM1100?
Xfinity tells me my modem, CM1100, is 3 years old and is causing connection issues with my internet service. Does this seem accurate?
DOCSIS® 3.1 Cable Modem (CM1100)
12 Replies
No. Someone at the ISP is trying to get you to spend money elsewhere.
Please post a copy and paste of the modems connection status and event log page.
https://kb.netgear.com/30007/How-do-I-obtain-the-cable-connection-information-from-a-NETGEAR-cable-modem-modem-router
https://kb.netgear.com/30008/How-do-I-view-or-clear-the-event-logs-on-my-NETGEAR-cable-modem-or-modem-router
Be sure your using a good quality LAN cable between the modem and router. CAT6 is recommended.
What is the brand and model of the host wifi router connected to the modem?Thanks for helping.
It's connected to a Netgear Nighthawk Mesh SiFi 6 Router (MR60).
I'm trying to post the copy/past, but the forum won't let me.
Apply Cancel 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 <tabindex=-1>Startup Procedure</tabindex=-1>
Procedure Status Comment Acquire Downstream Channel 543000000 Hz Locked Connectivity State OK Operational Boot State OK Operational Security Enable BPI+ IP Provisioning Mode Honor MDD IPv6 only <tabindex=-1>Upstream Bonded Channels</tabindex=-1> Channel Lock Status Modulation Channel ID Frequency Power 1 Locked ATDMA 17 16400000 Hz 44.8 dBmV 2 Locked ATDMA 18 22800000 Hz 45.0 dBmV 3 Locked ATDMA 19 29200000 Hz 47.3 dBmV 4 Locked ATDMA 20 35600000 Hz 45.8 dBmV 5 Not Locked Unknown 0 0 Hz 0.0 dBmV 6 Not Locked Unknown 0 0 Hz 0.0 dBmV 7 Not Locked Unknown 0 0 Hz 0.0 dBmV 8 Not Locked Unknown 0 0 Hz 0.0 dBmV <tabindex=-1>Downstream OFDM Channels</tabindex=-1> Channel Lock Status Modulation / Profile ID Channel ID Frequency Power SNR / MER Active Subcarrier Number Range Unerrored Codewords Correctable Codewords Uncorrectable Codewords 1 Locked 0, 1, 2, 3 193 957000000 Hz -6.3 dBmV 35.3 dB 148 ~ 3947 60266017 50668788 3 2 Not Locked 0 0 0 Hz 4.8 dBmV 0.0 dB 0 ~ 4095 0 0 0 <tabindex=-1>Upstream OFDMA Channels</tabindex=-1> Channel Lock Status Modulation / Profile ID Channel ID Frequency Power 1 Not Locked Unknown 0 0 Hz 0 dBmV 2 Not Locked Unknown 0 0 Hz 0 dBmV Current System Time: Wed Nov 01 15:57:15 2023 System Up Time: 0:55:30
