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Intermittently router fails

Hi,

Can anyone offer any advice for me?


I am intermittently losing connection to my router.

I have a direct ethernet connection, and find the same problem with both wifi and the ethernet connection.

The problem occurs firstly by losing internet connection from the router, and then losing contact with the router ethernet interface, and or wifi interface, as if the router is restarting.

The router interfaces stop responding to ping for a time, and then I am able to contact them, however it is still more time until a connection to the internet is established.

After a while, the internet connection resumes, but it is not too long before failing again.

There is no service outage in my area.

I have tried resetting the power, and factory resetting the router.

 

The same problem happens on multiple computers and mobile devices.

Logs from the router status are as follows:

Time Priority Description
04/11/2020 00:18:2 notice LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
03/11/2020 23:31:3 critical Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
03/11/2020 23:25:13 Warning! RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
03/11/2020 23:17:51 notice LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
03/11/2020 22:53:20 Warning! RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
03/11/2020 22:48:11 notice LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
03/11/2020 22:44:25 critical Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
03/11/2020 22:43:11 notice LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/01/1970 00:01:33 critical No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
03/11/2020 22:31:49 Warning! LAN login FAILED : Incorrect Username / Password / ConnectionType;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
03/11/2020 22:27:24 notice LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/01/1970 00:01:35 critical No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
03/11/2020 22:12:30 Warning! RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
03/11/2020 21:34:25 critical Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
03/11/2020 21:25:13 notice LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
03/11/2020 21:23:19 critical SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
03/11/2020 21:22:36 Warning! RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
03/11/2020 21:22:34 critical SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
03/11/2020 21:22:29 Warning! RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/01/1970 00:01:32 critical No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

Refresh data
General Configuration
Network access
Allowed
Maximum Number of CPEs
1
Baseline Privacy
Enabled
DOCSIS Mode
Docsis30
Config file
cmreg-vmdg505-rtsxl20016u-b.cm


Primary Downstream Service Flow
SFID 553842
Max Traffic Rate 230000061
Max Traffic Burst 42600
Min Traffic Rate 0


Primary Upstream Service Flow
SFID 553841
Max Traffic Rate 22000061
Max Traffic Burst 42600
Min Traffic Rate 0
Max Concatenated Burst 42600
Scheduling Type BestEffort
Refresh data


Upstream bonded channels
Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID
1 60300000 5.375 5120 64 qam 6


Upstream bonded channels
Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts
1 ATDMA 0 0 0 0

Downstream bonded channels
Channel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID
1 331000000 3.5 38 256 qam 25
2 203000000 4.4 38 256 qam 9
3 211000000 4.5 38 256 qam 10
4 219000000 4.4 38 256 qam 11
5 227000000 4.1 38 256 qam 12
6 235000000 3.9 38 256 qam 13
7 243000000 3.7 38 256 qam 14
8 251000000 3.2 38 256 qam 15
9 259000000 3.7 38 256 qam 16
10 267000000 3.9 38 256 qam 17
11 275000000 4 38 256 qam 18
12 283000000 3.7 38 256 qam 19
13 291000000 3.2 38 256 qam 20
14 299000000 3.5 38 256 qam 21
15 307000000 3.9 38 256 qam 22
16 315000000 3.5 38 256 qam 23
17 323000000 3.4 38 256 qam 24
18 371000000 3 38 256 qam 26
19 379000000 3.4 38 256 qam 27
20 387000000 3 38 256 qam 28
21 395000000 2.7 38 256 qam 29
22 403000000 2.4 38 256 qam 30
23 411000000 2.5 38 256 qam 31
24 419000000 2.4 38 256 qam 32


Downstream bonded channels
Channel Locked Status RxMER (dB) Pre RS Errors Post RS Errors
1 Locked 38.9 6 13
2 Locked 38.9 6 0
3 Locked 38.9 6 0
4 Locked 38.9 4 0
5 Locked 38.9 5 0
6 Locked 38.9 5 0
7 Locked 38.9 4 0
8 Locked 38.9 0 0
9 Locked 38.6 4 0
10 Locked 38.9 5 0
11 Locked 38.6 5 0
12 Locked 38.6 5 0
13 Locked 38.6 0 0
14 Locked 38.6 5 0
15 Locked 38.9 6 0
16 Locked 38.6 0 0
17 Locked 38.9 5 0
18 Locked 38.6 4 0
19 Locked 38.9 6 0
20 Locked 38.9 1 0
21 Locked 38.9 6 0
22 Locked 38.6 1 0
23 Locked 38.6 0 0
24 Locked 38.9 4 0

Cable Modem Status
Item Status Comments
Acquired Downstream Channel (Hz)
331000000
Locked
Ranged Upstream Channel (Hz)
60300000
Locked
Provisioning State
Online

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Re: Intermittently router fails

Is there really only 1 upstream channel - there should be 4? can you reset the Hub as per below and then set u a BQM as per below.
______________________________________________________

a pinhole reset on a Hub3 can be a bit problematic - so do it (again) EXACTLY this way (not as the VM website says!).

Firstly, make sure the Hub's sticker/card with the two passwords on it is still there and legible or you will be stuffed ! If its not – DON’T DO IT !

With the Hub switched "on", disconnect any ethernet connections and then push in the “reset pin” with the end of a paperclip/thin nail/SIM tray “tool” or similar (bigger items like ball point pen ends may not press it in far enough) until you feel it at the “stop point” and hold it there firmly for a "timed" minimum of 60 seconds do NOT restart the Hub after that. Leave it 10' or so to stabilise and then your passwords/passphrase for both the Hub settings and the Wifi networks will revert to the two printed on the Hub sticker on its base/side/card. Make sure you use the wifi one for devices connecting to the wifi and the settings/admin one to access the Hub (it is a six digit numeric one).

See if that sorts it and restores 4 upstream channels
__________________________________________

Set up a free “Broadband Quality Monitor” to continually monitor the state of your connection and record any true network dropouts , latency issues, packet drops, etc - it will thus allow you to differentiate between those and simple wifi dropouts. It does it 24/7/365 and it keeps a visual record of any/all of your network disconnections, useful data to have to match to the Network logs (in your Hub settings) and also in discussions with VM - note it will take a few hours to start seeing a sensible picture - post up the “link” (as per instructions on the TB website) when you have the first 24h period.

https://www.thinkbroadband.com/broadband/monitoring/quality

--------------------
John
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My services: HD TV on VIP (+ Sky Sports & Movies & BT sport), x3 V6 boxes (1 wired 2 WiFi,) SH2 in modem mode with Airport Extreme Router. On VIVID200, Talk Anytime Phone, x2 Mobile SIM only iPhones.
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