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Very low upload speed and upload packet loss

upload speeds below 0.5 Mbps on M100 broadband and also high upload packet loss this started happening a week ago.

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Re: Very low upload speed and upload packet loss

Downstream bonded channels

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

13470000006.540256 qam25
22350000006.540256 qam13
3243000000640256 qam14
42510000005.640256 qam15
5259000000640256 qam16
62670000006.540256 qam17
72750000006.540256 qam18
82830000006.540256 qam19
92910000006.340256 qam20
102990000006.540256 qam21
113070000006.640256 qam22
123150000006.840256 qam23
133230000006.540256 qam24
143550000006.840256 qam26
153630000006.840256 qam27
163710000006.540256 qam28
17379000000640256 qam29
183870000005.840256 qam30
193950000005.840256 qam31
204030000005.940256 qam32
214110000005.640256 qam33
224190000005.440256 qam34
234270000005.440256 qam35
244350000005.540256 qam36
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Re: Very low upload speed and upload packet loss

Downstream bonded channels

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

1Locked40.350
2Locked40.360
3Locked40.350
4Locked40.900
5Locked40.900
6Locked40.350
7Locked40.340
8Locked40.350
9Locked40.360
10Locked40.340
11Locked40.350
12Locked40.330
13Locked40.950
14Locked40.960
15Locked40.940
16Locked40.950
17Locked40.960
18Locked40.350
19Locked40.970
20Locked40.340
21Locked40.350
22Locked40.300
23Locked40.930
24Locked40.370
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Re: Very low upload speed and upload packet loss

Upstream bonded channels

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

1326000004.35512064 qam5
2394000004.546512016 qam4
3461974214.5512064 qam3
4537000004.7512064 qam2
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Re: Very low upload speed and upload packet loss

Upstream bonded channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

1ATDMA0000
2ATDMA0000
3ATDMA0000
4ATDMA0000
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Message 6 of 11
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Re: Very low upload speed and upload packet loss

General Configuration

Network access
Allowed
Maximum Number of CPEs
1
Baseline Privacy
Enabled
DOCSIS Mode
Docsis30
Config file
ldJKDHSUBsgvca69834ncxv987325
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Message 7 of 11
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Re: Very low upload speed and upload packet loss

Primary Downstream Service Flow

SFID2475
Max Traffic Rate117000047
Max Traffic Burst42600
Min Traffic Rate0



Primary Upstream Service Flow

SFID2474
Max Traffic Rate10500047
Max Traffic Burst16320
Min Traffic Rate0
Max Concatenated Burst16320
Scheduling TypeBestEffort
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Message 8 of 11
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Re: Very low upload speed and upload packet loss

Stats look ok - can you post u the network logs as well.

You could also try a factory reset – a lot of the VM techies on here are suggesting it as a first option and it has worked for many customers.

Note that a pinhole reset on a Hub3 can be a bit problematic - so do it 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 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).

And then.. you may be doing this already but if not......

If you think that you have a BB speed problem, then to check the speeds coming in to your Hub properly, and whether they match what you should be getting, you cannot rely on wifi tests, - no BB supplier guarantees those - only speeds "TO" the Hub are guaranteed.
So, you need to test speeds directly.... that's on an ethernet cable (Cat5e/6) connected to a GB enabled computer/laptop, with up to date drivers with the Hub in modem mode. Test at speedtest.net to your nearest VM server - try 2 different browsers.
If they are still low – boot the device into safe+networking mode and try again.
Report back what that gets . There are many posts on here where unknown software or other connected devices are limiting speeds on tests.

Also, in the meantime. Set up a free “Broadband Quality Monitor” to continually monitor the state of your connection and record any true network dropouts - 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.

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


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

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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Message 9 of 11
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Re: Very low upload speed and upload packet loss

I have already factory reset my router multiple times and im using 1.0Gbs Ethernet cable and im using speedtest.net but the upload speed is still the same i cant even upload a screenshot because of the upload speed also i know it is not any software because this happens on every device connected to the network.

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Message 10 of 11
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Re: Very low upload speed and upload packet loss

Network Log
Time Priority Description
26/06/2020 12:40:2 Warning! RCS Partial Service;CM-MAC=***********;CMTS-MAC=***********;CM-QOS=1.1;CM-VER=3.0;
26/06/2020 12:40:4 critical SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=***********;CMTS-MAC=***********;CM-QOS=1.1;CM-VER=3.0;
26/06/2020 12:40:4 Warning! RCS Partial Service;CM-MAC=***********;CMTS-MAC=***********;CM-QOS=1.1;CM-VER=3.0;
26/06/2020 13:32:12 critical No Ranging Response received - T3 time-out;CM-MAC=***********;CMTS-MAC=***********;CM-QOS=1.1;CM-VER=3.0;
26/06/2020 16:44:2 critical SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=***********;CMTS-MAC=***********;CM-QOS=1.1;CM-VER=3.0;
26/06/2020 16:44:2 Warning! RCS Partial Service;CM-MAC=***********;CMTS-MAC=***********;CM-QOS=1.1;CM-VER=3.0;
26/06/2020 16:44:3 critical SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=***********;CMTS-MAC=***********;CM-QOS=1.1;CM-VER=3.0;
26/06/2020 16:44:7 Warning! RCS Partial Service;CM-MAC=***********;CMTS-MAC=***********;CM-QOS=1.1;CM-VER=3.0;
26/06/2020 16:44:34 critical No Ranging Response received - T3 time-out;CM-MAC=***********;CMTS-MAC=***********;CM-QOS=1.1;CM-VER=3.0;
29/06/2020 11:56:13 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;
29/06/2020 11:57:48 critical No Ranging Response received - T3 time-out;CM-MAC=***********;CMTS-MAC=***********;CM-QOS=1.1;CM-VER=3.0;
29/06/2020 12:35:0 Warning! RCS Partial Service;CM-MAC=***********;CMTS-MAC=***********;CM-QOS=1.1;CM-VER=3.0;
29/06/2020 12:35:0 critical SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=***********;CMTS-MAC=***********;CM-QOS=1.1;CM-VER=3.0;
29/06/2020 12:35:0 Warning! RCS Partial Service;CM-MAC=***********;CMTS-MAC=***********;CM-QOS=1.1;CM-VER=3.0;
29/06/2020 12:35:0 critical SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=***********;CMTS-MAC=***********;CM-QOS=1.1;CM-VER=3.0;
29/06/2020 12:35:0 Warning! RCS Partial Service;CM-MAC=***********;CMTS-MAC=***********;CM-QOS=1.1;CM-VER=3.0;
29/06/2020 12:35:2 critical SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=***********************;CMTS-MAC=***********************;CM-QOS=1.1;CM-VER=3.0;
29/06/2020 12:35:2 Warning! RCS Partial Service;CM-MAC=***********************;CMTS-MAC=***********************;CM-QOS=1.1;CM-VER=3.0;
29/06/2020 12:35:6 Warning! Lost MDD Timeout;CM-MAC=***********************;CMTS-MAC=***********************;CM-QOS=1.1;CM-VER=3.0;
29/06/2020 12:35:8 critical No Ranging Response received - T3 time-out;CM-MAC=***********************;CMTS-MAC=***********************;CM-QOS=1.1;CM-VER=3.0;

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