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sparikian
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Upload speed close to zero

Hi

I have had real problems with my Hub 3.0 this week.

Internet has been patchy all week. Today I went through a lot of things with text engineer.

Hub reset with pencil on back.

Monitored speeds with computer plugged into ethernet and no other connections - upload speeds below 1MB. Download generally good - 50MB +.

But lack of upload bandwidth means any connection is patchy.

Engineer coming end of next week, but would like to solve this to help two children study at home, as well as being able to work from home myself.

Virgin media say not aware of problems, and text engineer wasn't aware of local issues either; but I am convinced something must be up.

Live BQM here - 

https://www.thinkbroadband.com/broadband/monitoring/quality/share/a3414fff07f4fc2865fa3148f1837c1885...


 

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carl_pearce
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Re: Upload speed close to zero


@sparikian wrote:

Hi

I have had real problems with my Hub 3.0 this week.

Internet has been patchy all week. Today I went through a lot of things with text engineer.

Hub reset with pencil on back.

Monitored speeds with computer plugged into ethernet and no other connections - upload speeds below 1MB. Download generally good - 50MB +.

But lack of upload bandwidth means any connection is patchy.

Engineer coming end of next week, but would like to solve this to help two children study at home, as well as being able to work from home myself.

Virgin media say not aware of problems, and text engineer wasn't aware of local issues either; but I am convinced something must be up.

Live BQM here - 

https://www.thinkbroadband.com/broadband/monitoring/quality/share/a3414fff07f4fc2865fa3148f1837c1885...


 


Massive packet loss:

carl_pearce_0-1610659114400.png

 

Certainly a problem with your line.

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sparikian
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Re: Upload speed close to zero

Router status

 

Cable Modem StatusItem Status Comments

Acquired Downstream Channel (Hz)
402750000
Locked
Ranged Upstream Channel (Hz)
39399403
Locked
Provisioning State
Online
 
 
 
Downstream bonded channelsChannel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID
14027500004.338256 qam30
22027500004.338256 qam9
32107500004.338256 qam10
42187500004.538256 qam11
52267500004.538256 qam12
62347500004.538256 qam13
72427500004.438256 qam14
82507500004.538256 qam15
92587500004.538256 qam16
102667500004.838256 qam17
112747500004.638256 qam18
122827500004.840256 qam19
132907500004.838256 qam20
14298750000538256 qam21
15306750000538256 qam22
16314750000538256 qam23
17322750000540256 qam24
183307500005.140256 qam25
193707500004.638256 qam26
203787500004.338256 qam27
21386750000138256 qam28
223947500002.738256 qam29
234107500004.640256 qam31
244187500004.840256 qam32


Downstream bonded channelsChannel Locked Status RxMER (dB) Pre RS Errors Post RS Errors
1Locked38.650
2Locked38.940
3Locked38.950
4Locked38.940
5Locked38.940
6Locked38.950
7Locked38.960
8Locked38.960
9Locked38.950
10Locked38.950
11Locked38.950
12Locked40.350
13Locked38.940
14Locked38.950
15Locked38.6170
16Locked38.9190
17Locked40.340
18Locked40.300
19Locked38.900
20Locked38.940
21Locked38.6230
22Locked38.660
23Locked40.360
24Locked40.360

 

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sparikian
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Re: Upload speed close to zero

Thanks.

So looks as if nothing I can do. Maybe unplug at the Hub and wall and plug back in - but that feels like desperation.

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carl_pearce
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Re: Upload speed close to zero


@sparikian wrote:

Thanks.

So looks as if nothing I can do. Maybe unplug at the Hub and wall and plug back in - but that feels like desperation.


And check the coax between the HUB and wall socket.

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sparikian
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Re: Upload speed close to zero

Will do - but I don't quite see how downlaod is fine (100MB), and upload so poor.

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MikeRobbo
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Alessandro Volta
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Re: Upload speed close to zero

Can you please

Type 192.168.0.1 (192.168.100.1 in Modem mode) into your browser URL bar and press enter. 

Hub 2 & 3 When the page appears DO NOT LOG IN but click ‘Check Router Status’.

Hub 4 When the page appears LOG IN then Advanced Settings > Tools > Network Status.

Copy and paste the contents of the Upstream, Configuration and Network Log tabs onto here, if you get a yellow / straw box warning click the Post button again.

Use one post for each tab if you wish.

Please do not use screen shots.

A Guru will be along soon to decipher the info.


*********************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************
BT Smart Hub 2 with 70Mbs Download,18Mbs Upload, 9.17ms Latency & 0.35ms Jitter.
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sparikian
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Re: Upload speed close to zero

Upstream bonded channels

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

13940027748.5512016 qam4
25369988550.3512016 qam2
34619970249.8512016 qam3
43259988747.5512016 qam5



Upstream bonded channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

1ATDMA001950
2ATDMA001350
3ATDMA00740
4ATDMA00480

 

General Configuration

Network access
Allowed
Maximum Number of CPEs
1
Baseline Privacy
Enabled
DOCSIS Mode
Docsis30
Config file
cmreg-vmdg505-bbt057+voc-b.cm



Primary Downstream Service Flow

SFID120102
Max Traffic Rate117000047
Max Traffic Burst42600
Min Traffic Rate0



Primary Upstream Service Flow

SFID120101
Max Traffic Rate10500047
Max Traffic Burst16320
Min Traffic Rate0
Max Concatenated Burst16320
Scheduling TypeBestEffort

 

Network Log

Time Priority Description

14/01/2021 21:43:48criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/01/2021 21:43:29Warning!Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/01/2021 21:43:24criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/01/2021 21:43:24Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/01/2021 21:43:24criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/01/2021 21:43:23Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/01/2021 21:43:19criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/01/2021 21:42:47Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/01/2021 21:42:40Warning!Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/01/2021 21:42:35criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/01/2021 21:42:35Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/01/2021 21:42:35criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/01/2021 21:42:26Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/01/2021 21:02:54criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/01/2021 21:01:29noticeLAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/01/2021 17:38:9criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/01/2021 17:38:3noticeLAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/01/2021 17:24:37criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/01/2021 17:24:29noticeLAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/01/2021 14:54:47criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
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sparikian
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Message 9 of 13
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Re: Upload speed close to zero

https://www.thinkbroadband.com/broadband/monitoring/quality/share/a3414fff07f4fc2865fa3148f1837c1885a0acce
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MikeRobbo
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Alessandro Volta
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Re: Upload speed close to zero

Try a reboot to see if the Hub can renegotiate a better connection using this method ...

Switch the Hub off using the small switch on the rear of the Hub next to the power cord and pull the PSU plug from the wall socket.

While the Hub is powered off go around all the accessible co-ax connectors inside and outside to ensure that they are finger tight by slackening off and then retightening.

Give it a good 5 minutes put the plug back in and switch the Hub back on.

Allow the Hub a few minutes to fully restart then check your BQM in about an hour or so.


*********************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************
BT Smart Hub 2 with 70Mbs Download,18Mbs Upload, 9.17ms Latency & 0.35ms Jitter.
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