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Have to unplug C7100V constantly.
I have had this modem now for a little over 2 years. I haven't had an issue until now. Just recently, like with in a month or so, I have ben losing my wifi connections. (Not sure of the ethernet connections) I would have to constantly reset (Unplug, or remotely) the modem and everything would be fine again for a week or so, until I have to do it again. I'm not sure why this is happening. I don't know what the Event Logs mean. I will add them here in hopes someone could tell me. If it was trying to update and it didn't take, how do I force it?
I have Comcast (Xfinity) with Voice.
Netgear C7100V
Firmware Version: V2.01.42
Windows 10 PC
| Time | Priority | Description |
| 2020-02-04, 05:50:34.0 | Critical (3) | Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=b0:b9:8a:d3:71:40;CMTS-MAC=18:8b:9d:4a:3d:61;CM-QOS=1.1;CM-VER=3.0; |
| 2020-02-04, 05:49:58.0 | Warning (5) | Unicast DSID PSN startup error |
| 2020-02-04, 02:00:48.0 | Notice (6) | SW download Successful - Via Config file |
| 2020-02-04, 01:59:32.0 | Notice (6) | SW Download INIT - Via Config file d11_v_c7100vims_silver_c02.cm |
| 2020-02-04, 01:57:17.0 | Critical (3) | Resetting the cable modem due to docsDevResetNow |
| 2020-02-03, 01:26:11.0 | Warning (5) | MDD message timeout;CM-MAC=b0:b9:8a:d3:71:40;CMTS-MAC=18:8b:9d:4a:3d:61;CM-QOS=1.1;CM-VER=3.0; |
| 2020-02-02, 12:27:31.0 | Critical (3) | Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=b0:b9:8a:d3:71:40;CMTS-MAC=18:8b:9d:4a:3d:61;CM-QOS=1.1;CM-VER=3.0; |
| 2020-02-02, 04:06:49.0 | Warning (5) | MDD message timeout;CM-MAC=b0:b9:8a:d3:71:40;CMTS-MAC=18:8b:9d:4a:3d:61;CM-QOS=1.1;CM-VER=3.0; |
| 2020-02-01, 17:43:27.0 | Warning (5) | MDD message timeout;CM-MAC=b0:b9:8a:d3:71:40;CMTS-MAC=18:8b:9d:4a:3d:61;CM-QOS=1.1;CM-VER=3.0; |
| 2020-02-01, 17:43:27.0 | Critical (3) | Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=b0:b9:8a:d3:71:40;CMTS-MAC=18:8b:9d:4a:3d:61;CM-QOS=1.1;CM-VER=3.0; |
| 2020-01-31, 13:58:43.0 | Critical (3) | Resetting the cable modem due to docsDevResetNow |
| 2020-01-31, 02:04:48.0 | Warning (5) | MDD message timeout;CM-MAC=b0:b9:8a:d3:71:40;CMTS-MAC=18:8b:9d:4a:3d:61;CM-QOS=1.1;CM-VER=3.0; |
| 2020-01-29, 06:43:37.0 | Warning (5) | MDD message timeout;CM-MAC=b0:b9:8a:d3:71:40;CMTS-MAC=18:8b:9d:4a:3d:61;CM-QOS=1.1;CM-VER=3.0; |
| 2020-01-29, 06:43:37.0 | Critical (3) | Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=b0:b9:8a:d3:71:40;CMTS-MAC=18:8b:9d:4a:3d:61;CM-QOS=1.1;CM-VER=3.0; |
| 2020-01-20, 19:07:52.0 | Warning (5) | MDD message timeout;CM-MAC=b0:b9:8a:d3:71:40;CMTS-MAC=18:8b:9d:4a:3d:61;CM-QOS=1.1;CM-VER=3.0; |
| 2020-01-20, 19:07:52.0 | Critical (3) | Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=b0:b9:8a:d3:71:40;CMTS-MAC=18:8b:9d:4a:3d:61;CM-QOS=1.1;CM-VER=3.0; |
| 2020-01-15, 10:28:37.0 | Critical (3) | Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=b0:b9:8a:d3:71:40;CMTS-MAC=18:8b:9d:4a:3d:61;CM-QOS=1.1;CM-VER=3.0; |
| 2020-01-15, 10:28:02.0 | Warning (5) | Unicast DSID PSN startup error |
| Time Not Established | Notice (6) | Honoring MDD; IP provisioning mode = IPv6 |
| Time Not Established | Notice (6) | Honoring MDD; IP provisioning mode = IPv6 |
| Time Not Established | Notice (6) | Honoring MDD; IP provisioning mode = IPv6 |
| Time Not Established | Notice (6) | Honoring MDD; IP provisioning mode = IPv6 |
| Time Not Established | Notice (6) | Honoring MDD; IP provisioning mode = IPv6 |
| Time Not Established | Notice (6) | Honoring MDD; IP provisioning mode = IPv6 |
| Time Not Established | Notice (6) | Honoring MDD; IP provisioning mode = IPv6 |
| Time Not Established | Notice (6) | Honoring MDD; IP provisioning mode = IPv6 |
| Time Not Established | Notice (6) | WiFi Interface [wl0] set to Channel 11 (Side-Band Channel:N/A) - Reason:INIT |
| Time Not Established | Notice (6) | WiFi Interface [wl1] set to Channel 153 (Side-Band Channel:N/A) - Reason:INIT |
| Time Not Established | Notice (6) | WiFi Interface [wl0] set to Channel 11 (Side-Band Channel:N/A) - Reason:INIT |
| Time Not Established | Notice (6) | WiFi Interface [wl1] set to Channel 153 (Side-Band Channel:N/A) - Reason:INIT |
| Time Not Established | Notice (6) | WiFi Interface [wl0] set to Channel 11 (Side-Band Channel:N/A) - Reason:INIT |
| Time Not Established | Notice (6) | WiFi Interface [wl1] set to Channel 153 (Side-Band Channel:N/A) - Reason:INIT |
| Time Not Established | Notice (6) | WiFi Interface [wl0] set to Channel 1 (Side-Band Channel:N/A) - Reason:INIT |
| Time Not Established | Notice (6) | WiFi Interface [wl1] set to Channel 153 (Side-Band Channel:N/A) - Reason:INIT |
| Time Not Established | Notice (6) | WiFi Interface [wl0] set to Channel 11 (Side-Band Channel:N/A) - Reason:INIT |
| Time Not Established | Notice (6) | WiFi Interface [wl1] set to Channel 153 (Side-Band Channel:N/A) - Reason:INIT |
| Time Not Established | Notice (6) | WiFi Interface [wl0] set to Channel 1 (Side-Band Channel:N/A) - Reason:INIT |
| Time Not Established | Notice (6) | WiFi Interface [wl1] set to Channel 153 (Side-Band Channel:N/A) - Reason:INIT |
| Time Not Established | Notice (6) | WiFi Interface [wl0] set to Channel 11 (Side-Band Channel:N/A) - Reason:INIT |
| Time Not Established | Notice (6) | WiFi Interface [wl1] set to Channel 153 (Side-Band Channel:N/A) - Reason:INIT |
12 Replies
Have the ISP check the signal and line quality UP to the modem.
Be sure there are not coax cable line splitters in the between the modem and ISP service box.
Be sure your using good quality RG6 coax cable up to the modem.
What channels are you using? Auto? Try setting manual channel 1, 6 or 11 on 2.4Ghz and any unused channel on 5Ghz.
Any Wifi Neighbors near by? If so, how many?- Hi, Thanks for the reply!
To answer your questions:
What channels are you using? Auto? I'll have to look, but not sure what that has to do with me having to restart. The modem lights were PHONE: Flashing, no dial tone. Wifi: was also flashing. Basically, I had no service. I was not home and the last time, I forgot to even check to see if my network cable to my pc, was working (connected).
Any Wifi Neighbors near by? Yes.
If so, how many? 3 others.
It looks like I was being sarcastic up 👆 there, but I'm not. So I apologize for that.
I used to work for Comcast as an installer. I have an excellent Signal to the modem. I have a home run from my modem to the ground block.
I'm wondering if there was anything wrong with the actual modem, or the software.
I have quad core cable RG6 ran.
Did you see the failure in the event log? Does it mean anything?
I see alot of CRITICALs listed. Possible this is signal related or ISP service related.
So when all this happens do both wired, wireless and phone all go down or does wired still have access to the internet during this time frame?
You might find a store or online store with a good refund policy and get you a 2nd modem gatway unit to test with and see if this different unit exhibits the same thing.
Please provide power values screenshot as well.
it looks like line has an issue.
Please confirm cable and connectors are ok.
Please check another connector in the house.
- Where do I find this power data?
in the main page, there should be an an icon called Cable connection. Once you click it, you will lot of values in a table format. Take screenshots and put it on imgur and let us know the links.
