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WillyWonky
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Intermittent Connection Loss, Poor Speeds, Overall Nightmare

Over the last few months I've been dealing with regular connection issues via ethernet and wifi. Despite being on a 200mbps package, we're averaging 80 on speed tests, with the maximum being 110. On top of that, the notoriously bad Superhub 3 wifi signal isn't the culprit, as I've tested Wifi signals within a couple of meters of the hub as well as ethernet connections. I've done all of this on multiple devices as well, just to be sure.

Whilst the connection may initially seem stable (though drastically below par on speed) it will quickly drop out when subject to any kind of usage. Online games will effectively just drop me out, downloads will stop after the first 10 seconds, restart and get a couple of MBPS going for maybe another 10 seconds, and then cut out all over again. Accessing this forum page alone took me around half an hour.

Virgin Media support have proven to be about as much help as a screen door on a submarine, suggesting I use a wifi extender (which are renowned for fixing loss of internet it seems) and the Virgin Media website states there are no connection issues in my area.

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WillyWonky
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Re: Intermittent Connection Loss, Poor Speeds, Overall Nightmare

Cable Modem StatusItem Status Comments

Acquired Downstream Channel (Hz)
434750000
Locked
Ranged Upstream Channel (Hz)
53700000
Locked
Provisioning State
Online

 

Downstream bonded channels

Channel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID

14347500002.538256 qam33
22507500002.738256 qam15
3258750000338256 qam16
4266750000338256 qam17
5274750000340256 qam18
6282750000340256 qam19
7290750000338256 qam20
82987500003.438256 qam21
93067500003.738256 qam22
103147500003.738256 qam23
11322750000438256 qam24
123307500004.440256 qam25
133787500002.538256 qam26
143867500002.238256 qam27
153947500002.238256 qam28
164027500002.238256 qam29
174107500002.538256 qam30
184187500002.438256 qam31
194267500002.538256 qam32
20442750000238256 qam34
214507500002.238256 qam35
224587500001.738256 qam36
234667500001.738256 qam37
244747500001.538256 qam38



Downstream bonded channels

Channel Locked Status RxMER (dB) Pre RS Errors Post RS Errors

1Locked38.9270
2Locked38.960
3Locked38.960
4Locked38.990
5Locked40.360
6Locked40.360
7Locked38.650
8Locked38.970
9Locked38.950
10Locked38.970
11Locked38.970
12Locked40.320
13Locked38.960
14Locked38.9180
15Locked38.9310
16Locked38.9210
17Locked38.9150
18Locked38.6110
19Locked38.9120
20Locked38.6230
21Locked38.9260
22Locked38.6350
23Locked38.9220
24Locked38.9370
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WillyWonky
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Re: Intermittent Connection Loss, Poor Speeds, Overall Nightmare

 

 

Upstream bonded channels

Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID

15370000047512032 qam10
23940000045.8512032 qam12
34620000046.3512064 qam11
46030000047512032 qam9



Upstream bonded channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

1ATDMA0000
2ATDMA0074
3ATDMA0043
4ATDMA0000

 

Network access
Allowed
Maximum Number of CPEs
1
Baseline Privacy
Enabled
DOCSIS Mode
Docsis30
Config file
gvca69834ncxv9873254k;fg8



Primary Downstream Service Flow

SFID24109
Max Traffic Rate117000047
Max Traffic Burst42600
Min Traffic Rate0



Primary Upstream Service Flow

SFID24108
Max Traffic Rate10500047
Max Traffic Burst16320
Min Traffic Rate0
Max Concatenated Burst16320
Scheduling TypeBestEffort
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jbrennand
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Re: Intermittent Connection Loss, Poor Speeds, Overall Nightmare

The data shows that you are still on the 100mbps (see the max traffic rate transfer speeds - in bps!) so its no wonder you are maxing out at ~100mbps !!

That said - there are T3 timeouts in the Upstream channels. These may be historic accumulation. post up the Network Logs for the past couple of weeks so we can see the frequency. When was the Hub last rebooted. Also three of the Up qam's have dropped to 32 from 64 - this usually means its struggling"

Worth turning the Hub off and unplugging for a few minutes to reset the T3 numbers and start it up and see if the Up qam's return to 64 first - and stay there.


--------------------
John
--------------------

I do not work for VM. 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 +2 Airport Express's. On VIVID200, Talk Anytime Phone, x2 Mobile SIM only iPhones.
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WillyWonky
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Re: Intermittent Connection Loss, Poor Speeds, Overall Nightmare

    Network Log

Time Priority Description

17/06/2021 15:45:44criticalReceived 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;
17/06/2021 15:45:14criticalUnicast Ranging Received Abort Response - initializing MAC;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/06/2021 15:45:14Warning!TCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/06/2021 15:45:8criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/06/2021 15:45:7criticalUnicast Ranging Received Abort Response - initializing MAC;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/06/2021 15:44:5criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/06/2021 15:44:4criticalUnicast Ranging Received Abort Response - initializing MAC;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/06/2021 15:43:25criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/06/2021 15:43:25criticalUnicast Ranging Received Abort Response - initializing MAC;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/06/2021 15:42:45criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/06/2021 15:42:45criticalUnicast Ranging Received Abort Response - initializing MAC;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/06/2021 15:42:25noticeLAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/06/2021 15:42:5criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/06/2021 15:42:5criticalUnicast Ranging Received Abort Response - initializing MAC;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/06/2021 15:41:28noticeLAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/06/2021 15:41:25criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/06/2021 15:41:25criticalUnicast Ranging Received Abort Response - initializing MAC;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/06/2021 15:40:54noticeLAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/06/2021 15:40:45criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/06/2021 15:40:45criticalUnicast Ranging Received Abort Response - initializing MAC;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

 

Can't seem to get anything before today, sorry. I've done a factory reset and a long reboot, as well as run Virgin's own network diagnostic tool, which vaguely states there's problems with my home network (broadband specifically).

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jbrennand
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Message 6 of 7
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Re: Intermittent Connection Loss, Poor Speeds, Overall Nightmare

And what do the Hub stats show after the reset?

Also check for known faults on the “free & automated” Service Status number - 0800 561 0061 - which usually gives the most up to date info. and tells you of more local issues down to postcode level.

--------------------
John
--------------------

I do not work for VM. 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 +2 Airport Express's. On VIVID200, Talk Anytime Phone, x2 Mobile SIM only iPhones.
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lotharmat
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Re: Intermittent Connection Loss, Poor Speeds, Overall Nightmare

3 U/S channels were also 32 QAM - what are they now?



------------------------------------------------------------------
Hub 3 - Modem Mode - TP-Link Archer C7

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