Regular Visitor
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3 Messages
Internet Dropping Frequently
Good Afternoon,
Appreciate any help I can get on this. My wife and I have been working from home since February and we’d notice the internet would drop every once in a while for a few minutes, maybe once a week. The last few weeks have been challenging with the internet dropping out several times a day. I'm not seeing any Correct/Uncorrected on my Downstream. I’ve run speed tests when this is happening and it appears as if our upload speed is dropping to 0Mbps, while our download speeds remain above 100Mbps. Our modem is a MB8600 and we have the cable running straight to it from the box outside, no splitters. Spoke with my neighbors and they are having the same issue it seems. Spoke with Comcast and they basically said they'll call to schedule a tech to come out, but that there was no ETA on when they were going to resume house calls in my area.
Startup Sequence | ||
Startup Step | Status | Comment |
Acquire Downstream Channel | 579000000 Hz | Locked |
Upstream Connection | OK | Operational |
Boot State | OK | Operational |
Configuration File | OK | |
Security | Enabled | BPI+ |
Downstream Bonded Channels | ||||||||
Channel | Lock Status | Modulation | Channel ID | Freq. (MHz) | Pwr (dBmV) | SNR (dB) | Corrected | Uncorrected |
1 | Locked | QAM256 | 25 | 579 | 5.7 | 40.9 | 0 | 0 |
2 | Locked | QAM256 | 9 | 483 | 4.5 | 41.2 | 0 | 0 |
3 | Locked | QAM256 | 10 | 489 | 5 | 41.5 | 0 | 0 |
4 | Locked | QAM256 | 11 | 495 | 4.9 | 41.5 | 0 | 0 |
5 | Locked | QAM256 | 12 | 501 | 5.1 | 41.4 | 0 | 0 |
6 | Locked | QAM256 | 13 | 507 | 5.5 | 41.6 | 0 | 0 |
7 | Locked | QAM256 | 14 | 513 | 5.6 | 41.6 | 0 | 0 |
8 | Locked | QAM256 | 15 | 519 | 5.5 | 41.5 | 0 | 0 |
9 | Locked | QAM256 | 16 | 525 | 5.6 | 41.6 | 0 | 0 |
10 | Locked | QAM256 | 17 | 531 | 5.5 | 41.5 | 0 | 0 |
11 | Locked | QAM256 | 18 | 537 | 5.5 | 41.4 | 0 | 0 |
12 | Locked | QAM256 | 19 | 543 | 5.4 | 41.4 | 0 | 0 |
13 | Locked | QAM256 | 20 | 549 | 5.3 | 41.4 | 0 | 0 |
14 | Locked | QAM256 | 21 | 555 | 5.5 | 41.3 | 0 | 0 |
15 | Locked | QAM256 | 22 | 561 | 5.6 | 41.2 | 0 | 0 |
16 | Locked | QAM256 | 23 | 567 | 5.4 | 41 | 0 | 0 |
17 | Locked | QAM256 | 24 | 573 | 5.5 | 41 | 0 | 0 |
18 | Locked | QAM256 | 26 | 585 | 5.9 | 40.9 | 0 | 0 |
19 | Locked | QAM256 | 27 | 591 | 5.9 | 40.9 | 0 | 0 |
20 | Locked | QAM256 | 28 | 597 | 6.1 | 40.9 | 0 | 0 |
21 | Locked | QAM256 | 29 | 603 | 6 | 40.8 | 0 | 0 |
22 | Locked | QAM256 | 30 | 609 | 5.7 | 40.6 | 0 | 0 |
23 | Locked | QAM256 | 31 | 615 | 5.6 | 40.3 | 0 | 0 |
24 | Locked | QAM256 | 32 | 621 | 5.4 | 40.4 | 0 | 0 |
25 | Locked | QAM256 | 33 | 627 | 5.5 | 40.3 | 0 | 0 |
26 | Locked | QAM256 | 34 | 633 | 5.2 | 40.1 | 0 | 0 |
27 | Locked | QAM256 | 35 | 639 | 5 | 40.1 | 0 | 0 |
28 | Locked | QAM256 | 36 | 645 | 4.7 | 39.8 | 0 | 0 |
29 | Locked | QAM256 | 37 | 651 | 4.6 | 39.9 | 0 | 0 |
30 | Locked | QAM256 | 38 | 657 | 4.4 | 40 | 0 | 0 |
31 | Locked | QAM256 | 39 | 663 | 4.3 | 39.7 | 0 | 0 |
32 | Locked | QAM256 | 40 | 669 | 3.8 | 39.4 | 0 | 0 |
33 | Locked | OFDM PLC | 159 | 690 | 4.1 | 37.8 | 3454265 | 0 |
Upstream Bonded Channels | ||||||
Channel | Lock Status | Channel Type | Channel ID | Symb. Rate (Ksym/sec) | Freq. (MHz) | Pwr (dBmV) |
1 | Not Locked | SC-QAM | 1 | 5120 | 35.6 | 45.5 |
2 | Locked | SC-QAM | 2 | 5120 | 29.2 | 44.8 |
3 | Locked | SC-QAM | 3 | 5120 | 22.8 | 45.8 |
4 | Locked | SC-QAM | 4 | 5120 | 16.4 | 46.3 |
Time | Priority | Description |
Mon Sep 21 2020 13:25:14 | Critical (3) | Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=00:40:36:4e:b3:78;CMTS-MAC=00:c8:8b:d7:e3:24;CM-QOS=1.1;CM-VER=3.1; |
Mon Sep 21 2020 13:25:28 | Critical (3) | Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=00:40:36:4e:b3:78;CMTS-MAC=00:c8:8b:d7:e3:24;CM-QOS=1.1;CM-VER=3.1; |
Mon Sep 21 2020 13:25:31 | Critical (3) | No Ranging Response received - T3 time-out;CM-MAC=00:40:36:4e:b3:78;CMTS-MAC=00:c8:8b:d7:e3:24;CM-QOS=1.1;CM-VER=3.1; |
Mon Sep 21 2020 13:25:44 | Critical (3) | Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=00:40:36:4e:b3:78;CMTS-MAC=00:c8:8b:d7:e3:24;CM-QOS=1.1;CM-VER=3.1; |
Mon Sep 21 2020 13:28:14 | Critical (3) | Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=00:40:36:4e:b3:78;CMTS-MAC=00:c8:8b:d7:e3:24;CM-QOS=1.1;CM-VER=3.1; |
Mon Sep 21 2020 13:28:44 | Critical (3) | Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=00:40:36:4e:b3:78;CMTS-MAC=00:c8:8b:d7:e3:24;CM-QOS=1.1;CM-VER=3.1; |
Mon Sep 21 2020 13:30:14 | Critical (3) | Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=00:40:36:4e:b3:78;CMTS-MAC=00:c8:8b:d7:e3:24;CM-QOS=1.1;CM-VER=3.1; |
Mon Sep 21 2020 13:30:44 | Critical (3) | Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=00:40:36:4e:b3:78;CMTS-MAC=00:c8:8b:d7:e3:24;CM-QOS=1.1;CM-VER=3.1; |
Mon Sep 21 2020 13:30:44 | Notice (6) | CM-STATUS message sent. Event Type Code: 6; Chan ID: 1; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=00:40:36:4e:b3:78;CMTS-MAC=00:c8:8b:d7:e3:24;CM-QOS=1.1;CM-VER=3.1; |
Mon Sep 21 2020 13:30:47 | Critical (3) | No Ranging Response received - T3 time-out;CM-MAC=00:40:36:4e:b3:78;CMTS-MAC=00:c8:8b:d7:e3:24;CM-QOS=1.1;CM-VER=3.1; |
Mon Sep 21 2020 13:31:07 | Critical (3) | Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=00:40:36:4e:b3:78;CMTS-MAC=00:c8:8b:d7:e3:24;CM-QOS=1.1;CM-VER=3.1; |
Mon Sep 21 2020 13:31:37 | Critical (3) | Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=00:40:36:4e:b3:78;CMTS-MAC=00:c8:8b:d7:e3:24;CM-QOS=1.1;CM-VER=3.1; |
Mon Sep 21 2020 13:31:38 | Critical (3) | Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=00:40:36:4e:b3:78;CMTS-MAC=00:c8:8b:d7:e3:24;CM-QOS=1.1;CM-VER=3.1; |
Mon Sep 21 2020 13:32:08 | Critical (3) | Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=00:40:36:4e:b3:78;CMTS-MAC=00:c8:8b:d7:e3:24;CM-QOS=1.1;CM-VER=3.1; |
Mon Sep 21 2020 13:32:25 | Critical (3) | Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=00:40:36:4e:b3:78;CMTS-MAC=00:c8:8b:d7:e3:24;CM-QOS=1.1;CM-VER=3.1; |
Mon Sep 21 2020 13:32:55 | Critical (3) | Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=00:40:36:4e:b3:78;CMTS-MAC=00:c8:8b:d7:e3:24;CM-QOS=1.1;CM-VER=3.1; |
Mon Sep 21 2020 13:32:56 | Critical (3) | No Ranging Response received - T3 time-out;CM-MAC=00:40:36:4e:b3:78;CMTS-MAC=00:c8:8b:d7:e3:24;CM-QOS=1.1;CM-VER=3.1; |
Mon Sep 21 2020 13:33:00 | Critical (3) | Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=00:40:36:4e:b3:78;CMTS-MAC=00:c8:8b:d7:e3:24;CM-QOS=1.1;CM-VER=3.1; |
Mon Sep 21 2020 13:33:30 | Critical (3) | Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=00:40:36:4e:b3:78;CMTS-MAC=00:c8:8b:d7:e3:24;CM-QOS=1.1;CM-VER=3.1; |
Mon Sep 21 2020 13:33:44 | Critical (3) | Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=00:40:36:4e:b3:78;CMTS-MAC=00:c8:8b:d7:e3:24;CM-QOS=1.1;CM-VER=3.1; |
Mon Sep 21 2020 13:33:48 | Critical (3) | Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=00:40:36:4e:b3:78;CMTS-MAC=00:c8:8b:d7:e3:24;CM-QOS=1.1;CM-VER=3.1; |
Mon Sep 21 2020 13:34:18 | Critical (3) | Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=00:40:36:4e:b3:78;CMTS-MAC=00:c8:8b:d7:e3:24;CM-QOS=1.1;CM-VER=3.1; |
Mon Sep 21 2020 13:35:53 | Critical (3) | Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=00:40:36:4e:b3:78;CMTS-MAC=00:c8:8b:d7:e3:24;CM-QOS=1.1;CM-VER=3.1; |
Mon Sep 21 2020 13:36:23 | Critical (3) | Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=00:40:36:4e:b3:78;CMTS-MAC=00:c8:8b:d7:e3:24;CM-QOS=1.1;CM-VER=3.1; |
Mon Sep 21 2020 13:36:40 | Critical (3) | Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=00:40:36:4e:b3:78;CMTS-MAC=00:c8:8b:d7:e3:24;CM-QOS=1.1;CM-VER=3.1; |
Mon Sep 21 2020 13:37:10 | Critical (3) | Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=00:40:36:4e:b3:78;CMTS-MAC=00:c8:8b:d7:e3:24;CM-QOS=1.1;CM-VER=3.1; |
Mon Sep 21 2020 13:37:11 | Critical (3) | Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=00:40:36:4e:b3:78;CMTS-MAC=00:c8:8b:d7:e3:24;CM-QOS=1.1;CM-VER=3.1; |
Mon Sep 21 2020 13:37:41 | Critical (3) | Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=00:40:36:4e:b3:78;CMTS-MAC=00:c8:8b:d7:e3:24;CM-QOS=1.1;CM-VER=3.1; |
Mon Sep 21 2020 13:37:58 | Critical (3) | Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=00:40:36:4e:b3:78;CMTS-MAC=00:c8:8b:d7:e3:24;CM-QOS=1.1;CM-VER=3.1; |
Mon Sep 21 2020 13:38:28 | Critical (3) | Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=00:40:36:4e:b3:78;CMTS-MAC=00:c8:8b:d7:e3:24;CM-QOS=1.1;CM-VER=3.1; |
Mon Sep 21 2020 13:38:29 | Critical (3) | Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=00:40:36:4e:b3:78;CMTS-MAC=00:c8:8b:d7:e3:24;CM-QOS=1.1;CM-VER=3.1; |
Mon Sep 21 2020 13:38:59 | Critical (3) | Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=00:40:36:4e:b3:78;CMTS-MAC=00:c8:8b:d7:e3:24;CM-QOS=1.1;CM-VER=3.1; |
dan105
Regular Visitor
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3 Messages
5 years ago
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MachinaEstDeus
New Poster
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1 Message
5 years ago
I've been having frequent disconnects for 2 weeks now. 2 tech visits. No change. Disconnects are more frequent in the morning and 9 to midnight.
This morning I pulled all the stuff they added to my incoming line and added a 6dB forward path attenuator. Been a lot more at stable. I need to get a 2nd one. I don't know what else to do when Comcast employees don't know how to fix an issue.
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dan105
Regular Visitor
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3 Messages
5 years ago
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hyubie
New Poster
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2 Messages
5 years ago
It looks to be a relatively common problem - this is the third post I saw about this. I posted on https://forums.xfinity.com/t5/Your-Home-Network/Internet-dropping-numerous-times-per-day/m-p/3373990/highlight/false#M334843
and it looks like this one had the same problem: https://forums.xfinity.com/t5/Your-Home-Network/Xfinity-100-Mbps-connection-keeps-dropping-intermittent/m-p/3340034#
I am having the same problem. I don't know how to get my modem's log, but I installed a google chrome plugin to detect my internet connection while I am working, and this is just this morning:
Date and time Status
Basically confirms what I thought - it's not my WiFi, it's the connection itself.
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