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bungle99
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Poor upload speed

Hi

I am on a 200/20 package. 

I am finding performance to be very poor, especially when trying to use Zoom or similar Video / VOIP calls. They sometimes work perfectly, other times they will fail entirely, and jumpy video, laggy voice and Dalek noises have become the norm. 

Note If I hotspot my desktop to my mobile phone, I do not have these issues. My router also supports a USB 4G dongle as an alternative WAN input; if I plug one in, my issues go away, making me fairly sure the issue is some where from the SH3 and beyond.

All data below is based on a wired ethernet connection (not wifi) into my own router. Although I do work from home, I am not using a VPN.

My household is very small and I would describe our usage as "pretty low"; a single Netflix stream is probably as taxing as it gets. 

A speed test is showing;

  • My download speed is below normal, but is workable (about 150Mbps). It is however exceptionally variable and will give wildly different numbers on subsequent tests and during the test, the "speedo arrow" swings all over the place (whereas I recall it being very stable in the past)
  • My upload speed is highly variable, but averages around 2Mbps (the min I've seen is below 0.5Mbps, the highest in recent days is 7Mbps)

In a terminal, outgoing pings (to say 8.8.8.8) are quite varied (from about 17ms to 70ms) and will on occasion timeout for few pings before picking up again.I am using a SH3 in modem mode. 

 

64 bytes from 8.8.8.8: icmp_seq=14173 ttl=115 time=22.123 ms
64 bytes from 8.8.8.8: icmp_seq=14174 ttl=115 time=70.579 ms
Request timeout for icmp_seq 14175
Request timeout for icmp_seq 14176
64 bytes from 8.8.8.8: icmp_seq=14177 ttl=115 time=65.237 ms
64 bytes from 8.8.8.8: icmp_seq=14178 ttl=115 time=27.930 ms

 

I have rebooted my equipment over the w/e, including the SH3.

I have setup a BQM;

A screenshot of that BQM;

fc5d8a8e1a6070e385115b3043c7ffda05348da5.png

I will add the modem status data in another post. 

Any ideas on whether anything can be done / how to fix appreciated

Many thanks

bungle99

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bungle99
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Re: Poor upload speed

SH3  Status Page
 
ItemStatusCommentsAcquired Downstream Channel (Hz)
202750000
Locked
Ranged Upstream Channel (Hz)
25800157
Locked
Provisioning State
Online

 

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bungle99
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Re: Poor upload speed

Downstream bonded channels

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

1202750000437256 qam9
2138750000437256 qam1
3146750000437256 qam2
41547500004.137256 qam3
51627500004.336256 qam4
6170750000437256 qam5
71787500004.137256 qam6
81867500004.337256 qam7
91947500004.137256 qam8
10210750000437256 qam10
112187500003.737256 qam11
122267500003.537256 qam12
132347500003.537256 qam13
142427500003.537256 qam14
152507500003.737256 qam15
16258750000437256 qam16
172667500004.437256 qam17
182747500004.537256 qam18
19282750000537256 qam19
202907500005.137256 qam20
212987500005.537256 qam21
223067500005.537256 qam22
233147500005.637256 qam23
243227500005.837256 qam24



Downstream bonded channels

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

1Locked37.3590
2Locked37.6660
3Locked37.6570
4Locked37.3900
5Locked36.61110
6Locked37.3920
7Locked37.61030
8Locked37.6560
9Locked37.6500
10Locked37.3510
11Locked37.3560
12Locked37.3620
13Locked37.6810
14Locked37.6730
15Locked37.3850
16Locked37.3810
17Locked37.3370
18Locked37.3690
19Locked37.3780
20Locked37.3450
21Locked37.3730
22Locked37.6680
23Locked37.6630
24Locked37.6780
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bungle99
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Re: Poor upload speed

Upstream bonded channels

Note that one of these channels sometimes shows a QAM of 16 or 32 (although right now they all show 64)

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

12580015737512064 qam4
23259985937.3512064 qam3
34620000037.3512064 qam1
43940000037512064 qam2



Upstream bonded channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

1ATDMA0020
2ATDMA0000
3ATDMA0010
4ATDMA0000
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bungle99
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Re: Poor upload speed

General Configuration

Network access
Allowed
Maximum Number of CPEs
1
Baseline Privacy
Enabled
DOCSIS Mode
Docsis30
Config file
cmreg-vmdg505-bbt060+voc-b.cm



Primary Downstream Service Flow

SFID2918472
Max Traffic Rate230000061
Max Traffic Burst42600
Min Traffic Rate0



Primary Upstream Service Flow

SFID2918471
Max Traffic Rate22000061
Max Traffic Burst42600
Min Traffic Rate0
Max Concatenated Burst42600
Scheduling TypeBestEffort
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bungle99
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Re: Poor upload speed

Network Log

Time Priority Description

17/02/2021 14:37:23criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
16/02/2021 23:31:8ErrorDHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/01/1970 00:01:42criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/02/2021 20:39:29noticeLAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/02/2021 17:47:13Warning!LAN login FAILED : Incorrect Username / Password / ConnectionType;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/02/2021 15:59:7criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/02/2021 00:19:15Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/02/2021 00:19:14criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/02/2021 00:19:14Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/02/2021 00:19:14criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/02/2021 00:19:14Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/02/2021 00:16:48criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/02/2021 00:16:47Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/02/2021 00:16:47criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/02/2021 00:16:47Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
12/02/2021 14:25:3criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
12/02/2021 02:19:32ErrorDHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
11/02/2021 03:50:15criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
10/02/2021 21:48:54Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
10/02/2021 21:48:54criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
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bungle99
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Message 7 of 12
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Re: Poor upload speed

Hi

My experience today has been pretty poor, with various points where I have struggled to use applications.

My BQM for today is as follows: https://www.thinkbroadband.com/broadband/monitoring/quality/share/3f37f02ed3a6ecb16e17f380eff59d39a8... 

Download speed this evening is about 140 Mbps, but upload is about 1.9Mbps (and variable).

I noticed one of my upstream channels has moved to 16 QAM.

Many thanks
bungle99

  Upstream bonded channels

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

12580010237512016 qam4
23260000037.3512064 qam3
34620000037.3512064 qam1
43940000037512064 qam2



Upstream bonded channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

1ATDMA0020
2ATDMA0000
3ATDMA0010
4ATDMA0000
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Vegancookies
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Re: Poor upload speed

After you came into my thread linking this one I've quickly scanned it, and you are struggling with the exact same issue with me I think, bad SNR (signal noise ratio), basically if there's a lot of noise on the lines (not talking about wifi, but the lines into the modem), you see this with the qam, when one goes down to 32 you might not notice it, but 2 of them, or any down to 16, you definitely will, and with any that aren't 64 you might notice it, you might not.

 

I don't know much about power levels so maybe someone can explain the importance of that to me (if you know please let me know!)

The next things I'd be interested to know:

Are virgin aware of the issue

What is the estimated time for them to fix the issue

What are we supposed to do in the mean time as this has been going on far far too long.

 

 

The only thing I can say that might clear the noise (but I don't think it will as it didn't for me) is unscrewing the wire into the modem and reconnecting it, if it's tied into a splitter for TV as well, do the splitter on all 3 ports and reconnect.

We should be so lucky in our house on a bad day to get over 0.2 Mbps , but yeah, it's definitely lower than it should be as it is with us.

I really appreciate you bringing me your thread as it does make me think it's virgin, I wonder how close we are to each other in the same area, I've heard that neighboring areas have struggled as well today (was told by a family member, not seen it myself).

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sayekm
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Message 9 of 12
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Re: Poor upload speed

 

Its very strange as I am also in area 22 but my BQM is below. Your BQM shows very high congestion. 

sayekm_0-1613777280703.png

 




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Don't cry over Virgin price increase instead speak to retentions team and negotiate a better deal.
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Vegancookies
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Message 10 of 12
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Re: Poor upload speed

As per my thread:

0800 561 0061

0345 454 1111
Ring one of those numbers, give it your landline or account number, and see if there are issues, saying that as per the rest of my reply, who knows when they'll be done, 9AM on what day?

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