4 Messages
internet keeps going down
Hi there,
We had a tech come out yesterday because our connection kept going down. We have a brand new Arris S33 V2 modem, and he did a lot of work to replace very old cable and connections to our house. We have much better signal strength after he left, but the connection is still dropping regularly.
Here is the record from my brand new router:
Here is the event log from the modem:
The table below contains the log of events that the S33v2 has detected. This log can be important to the service provider to help diagnose and correct problems, if any should occur.
Date Time |
Event Level |
Description |
9/11/2024 09:46:36 |
3 |
Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 09:46:37 |
3 |
No Ranging Response received - T3 time-out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 09:46:45 |
3 |
Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 09:46:45 |
3 |
Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 09:46:45 |
3 |
16 consecutive T3 timeouts while trying to range on upstream channel 5;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 09:46:47 |
3 |
Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 09:46:47 |
3 |
Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 09:46:47 |
3 |
16 consecutive T3 timeouts while trying to range on upstream channel 1;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 09:46:53 |
3 |
No Ranging Response received - T3 time-out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 09:47:05 |
3 |
Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 09:47:05 |
3 |
No Ranging Response received - T3 time-out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 09:47:06 |
3 |
Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 09:47:07 |
3 |
No Ranging Response received - T3 time-out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 09:47:07 |
3 |
Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 09:47:07 |
3 |
No Ranging Response received - T3 time-out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 09:47:20 |
3 |
Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 09:47:20 |
3 |
Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 09:47:20 |
3 |
16 consecutive T3 timeouts while trying to range on upstream channel 0;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 09:47:21 |
3 |
No Ranging Response received - T3 time-out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 09:47:22 |
3 |
Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 09:47:23 |
3 |
No Ranging Response received - T3 time-out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 09:47:24 |
3 |
Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 09:47:37 |
3 |
No Ranging Response received - T3 time-out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 09:48:07 |
3 |
No Ranging Response received - T3 time-out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 09:48:35 |
3 |
No Ranging Response received - T3 time-out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 09:48:53 |
3 |
No Ranging Response received - T3 time-out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 09:49:35 |
3 |
No Ranging Response received - T3 time-out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 09:51:02 |
3 |
No Ranging Response received - T3 time-out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 09:51:05 |
3 |
Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 09:51:19 |
3 |
No Ranging Response received - T3 time-out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 09:51:25 |
3 |
Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 09:51:32 |
3 |
CMSTATUS:US_Diplexer_Mode_Change:TLV-9, 5-42MHz. |
9/11/2024 09:51:48 |
3 |
CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-84.2, 108MHz. |
9/11/2024 09:51:48 |
3 |
CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-84.3, 1002MHz. |
9/11/2024 09:51:48 |
3 |
CMSTATUS:US_Diplexer_Mode_Change:TLV-84.1, 5-42MHz. |
9/11/2024 09:55:51 |
3 |
Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 09:59:45 |
3 |
Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 09:59:45 |
3 |
No Ranging Response received - T3 time-out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 09:59:45 |
3 |
Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 09:59:46 |
3 |
No Ranging Response received - T3 time-out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 09:59:46 |
3 |
Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 09:59:50 |
3 |
No Ranging Response received - T3 time-out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 09:59:51 |
3 |
Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 09:59:57 |
3 |
CMSTATUS:US_Diplexer_Mode_Change:TLV-9, 5-42MHz. |
9/11/2024 10:00:00 |
3 |
No Ranging Response received - T3 time-out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 10:00:15 |
3 |
CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-84.2, 108MHz. |
9/11/2024 10:00:15 |
3 |
CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-84.3, 1002MHz. |
9/11/2024 10:00:15 |
3 |
CMSTATUS:US_Diplexer_Mode_Change:TLV-84.1, 5-42MHz. |
9/11/2024 13:23:21 |
3 |
Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 13:23:21 |
3 |
Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 13:23:21 |
3 |
16 consecutive T3 timeouts while trying to range on upstream channel 3;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 13:23:25 |
3 |
No Ranging Response received - T3 time-out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 13:23:37 |
3 |
No Ranging Response received - T3 time-out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 13:23:52 |
3 |
Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 13:23:52 |
3 |
No Ranging Response received - T3 time-out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 13:23:58 |
3 |
Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 13:23:58 |
3 |
Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 13:24:03 |
3 |
No Ranging Response received - T3 time-out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 13:24:04 |
3 |
Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 13:24:04 |
3 |
Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 13:24:04 |
3 |
16 consecutive T3 timeouts while trying to range on upstream channel 2;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 13:24:06 |
3 |
No Ranging Response received - T3 time-out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 13:24:07 |
3 |
Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 13:24:08 |
3 |
No Ranging Response received - T3 time-out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 13:24:10 |
3 |
Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 13:24:10 |
3 |
No Ranging Response received - T3 time-out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 13:24:20 |
3 |
Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 13:24:20 |
3 |
No Ranging Response received - T3 time-out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 13:24:28 |
3 |
Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 13:24:41 |
3 |
Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 13:24:49 |
3 |
No Ranging Response received - T3 time-out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 13:25:08 |
3 |
No Ranging Response received - T3 time-out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 13:25:53 |
3 |
No Ranging Response received - T3 time-out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 13:26:23 |
3 |
No Ranging Response received - T3 time-out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 13:28:06 |
3 |
No Ranging Response received - T3 time-out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 13:28:06 |
3 |
Ranging Request Retries exhausted;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 13:28:06 |
3 |
16 consecutive T3 timeouts while trying to range on upstream channel 3;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 13:28:20 |
3 |
No Ranging Response received - T3 time-out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 13:28:24 |
3 |
Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 13:28:25 |
3 |
No Ranging Response received - T3 time-out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 13:28:26 |
3 |
Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 13:28:40 |
3 |
No Ranging Response received - T3 time-out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 13:28:41 |
3 |
Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 13:28:47 |
3 |
CMSTATUS:US_Diplexer_Mode_Change:TLV-9, 5-42MHz. |
9/11/2024 13:29:05 |
3 |
No Ranging Response received - T3 time-out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 13:29:21 |
3 |
CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-84.2, 108MHz. |
9/11/2024 13:29:21 |
3 |
CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-84.3, 1002MHz. |
9/11/2024 13:29:21 |
3 |
CMSTATUS:US_Diplexer_Mode_Change:TLV-84.1, 5-42MHz. |
31/12/1969 19:00:15 |
3 |
CMSTATUS:US_Diplexer_Mode_Change:Init, 5-42MHz. |
31/12/1969 19:00:18 |
3 |
SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=YYYY;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1; |
31/12/1969 19:00:20 |
3 |
CMSTATUS:US_Diplexer_Mode_Change:TLV-9, 5-42MHz. |
31/12/1969 19:00:23 |
3 |
No Ranging Response received - T3 time-out;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
31/12/1969 19:00:26 |
6 |
Honoring MDD; IP provisioning mode = IPv6 |
31/12/1969 19:00:34 |
3 |
CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-84.2, 108MHz. |
31/12/1969 19:00:34 |
3 |
CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-84.3, 1002MHz. |
31/12/1969 19:00:34 |
3 |
CMSTATUS:US_Diplexer_Mode_Change:TLV-84.1, 5-42MHz. |
9/11/2024 13:35:08 |
6 |
DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=YYYY;CMTS-MAC=XXXX;CM-QOS=1.1;CM-VER=3.1; |
9/11/2024 14:42:39 |
3 |
Failed LAN WebGUI login attempt from 192.168.0.101 on 24/11/09 at 2:42 PM. |
9/11/2024 14:43:57 |
3 |
Successful LAN WebGUI login from 192.168.0.101 on 24/11/09 at 2:43 PM. |
9/11/2024 14:46:40 |
3 |
Successful LAN WebGUI login from 192.168.0.101 on 24/11/09 at 2:46 PM. |
I believe based on this that we need a tech to come back out. Is that right?
Thanks.
EG
Expert
•
107.6K Messages
2 months ago
For curiosty, what do the modem's signal status values look like ?
Please also copy all of the text in its entirety of the *Downstream Power Levels*, the *SNR's* (Signal to Noise Ratios), and the *Upstream Power Level* numbers and paste them into your next post.
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0
EG
Expert
•
107.6K Messages
2 months ago
OK so even though the signal status values looked good / within specs at that snapshot in time, the error log entries confirm that something is going on. Perhaps there is noise ingress into the line(s) / an upstream channel / return path impairment somewhere.
There are other signal stat values that can't be read by the modem. They are the "Upstream Rx Power" (Upstream Receive Power Level), the "Upstream SNR Ch." (Upstream Signal To Noise Ratio), and the "Upstream ICFR" (In Channel Frequency Response). These are as equally important in diagnosing connectivity issues as are the modem's stats.
I'm going to escalate your issue to the Comcast corporate employees (The Digital Care Team) who are available to these boards. They will be able to poll the CMTS (Cable Modem Termination System) to check for any real-time degradation and / or error reports, see your node / cable plant, and modem health, and see whether or not everything is in the green zone. They can also see a history plot for the modem and check those upstream receive signal stats.
You should get a reply here in your topic. Good luck !
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