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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)
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?
| 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. | |
|
<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 Ok, I think I was able to post what was requested.
Looking forward to sorting this out.
Thanks!
Please post the entire data on the connections page along with the data from the events log page.
You can copy and paste into a word doc then export to PDF file than attach to your next post if that helps.