on 26-01-2020 10:19
Just switched over to Virgin, we get amazing speeds sitting up to 220mb/s but every 20/30minutes or so the speed either disconnects or drops to ~2mbs then sits at 20-30mb/s before jumping back up temporarily and repeat.
This happens across all my devices, my iMac is plugged in via Ethernet and my phone&ps4 experience the same issues across the Wifi Network
I've ran a BQS and these are the results
Here's some speed tests I ran at 2am (not peak time) that show the issue
on 26-01-2020 10:21
Cable Modem Status
Acquired Downstream Channel (Hz) | 187000000 | Locked |
Ranged Upstream Channel (Hz) | 60299733 | Locked |
Provisioning State | Online |
1 | 187000000 | 1 | 36 | 256 qam | 7 |
2 | 139000000 | 2.4 | 35 | 256 qam | 1 |
3 | 147000000 | 0.5 | 35 | 256 qam | 2 |
4 | 155000000 | 2.2 | 36 | 256 qam | 3 |
5 | 163000000 | 2.2 | 36 | 256 qam | 4 |
6 | 171000000 | 2.4 | 36 | 256 qam | 5 |
7 | 179000000 | 2 | 36 | 256 qam | 6 |
8 | 195000000 | 2.5 | 37 | 256 qam | 8 |
9 | 203000000 | 0.7 | 36 | 256 qam | 9 |
10 | 211000000 | 2.2 | 37 | 256 qam | 10 |
11 | 219000000 | 1.5 | 27 | 256 qam | 11 |
12 | 235000000 | 2.2 | 37 | 256 qam | 13 |
13 | 243000000 | 3.2 | 37 | 256 qam | 14 |
14 | 251000000 | 2.7 | 37 | 256 qam | 15 |
15 | 259000000 | 3.2 | 37 | 256 qam | 16 |
16 | 267000000 | 3.2 | 37 | 256 qam | 17 |
17 | 275000000 | 2.5 | 37 | 256 qam | 18 |
18 | 283000000 | 3.4 | 37 | 256 qam | 19 |
19 | 291000000 | 3.5 | 37 | 256 qam | 20 |
20 | 299000000 | 5.3 | 37 | 256 qam | 21 |
21 | 307000000 | 3.7 | 37 | 256 qam | 22 |
22 | 315000000 | 5.4 | 38 | 256 qam | 23 |
23 | 323000000 | 4.3 | 37 | 256 qam | 24 |
1 | Locked | 36.3 | 45668 | 236609 |
2 | Locked | 35.7 | 134217 | 9726 |
3 | Locked | 35.7 | 113702 | 118910 |
4 | Locked | 36.3 | 91719 | 5912 |
5 | Locked | 36.3 | 144127 | 6698 |
6 | Locked | 36.6 | 131176 | 10215 |
7 | Locked | 36.3 | 52425 | 2269796 |
8 | Locked | 37.6 | 103093 | 9470 |
9 | Locked | 36.6 | 115747 | 8083 |
10 | Locked | 37.6 | 126769 | 3378 |
11 | Locked | 27.5 | 70798875 | 177511412 |
12 | Locked | 37.3 | 8153 | 297 |
13 | Locked | 37.3 | 6151 | 190 |
14 | Locked | 37.3 | 4653 | 346 |
15 | Locked | 37.3 | 13787 | 442 |
16 | Locked | 37.3 | 5483 | 80 |
17 | Locked | 37.3 | 3731 | 105 |
18 | Locked | 37.6 | 3015 | 90 |
19 | Locked | 37.6 | 1917 | 65 |
20 | Locked | 37.3 | 2091 | 38 |
21 | Locked | 37.3 | 2200 | 24 |
22 | Locked | 38.6 | 2022 | 42 |
23 | Locked | 37.6 | 1714 | 27 |
on 26-01-2020 10:22
Upstream bonded channels
Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID
1 | 60299733 | 4.9 | 5120 | 16 qam | 1 |
2 | 53700142 | 5.196 | 5120 | 16 qam | 2 |
3 | 39400144 | 5.075 | 5120 | 32 qam | 4 |
4 | 46200109 | 5.1 | 5120 | 32 qam | 3 |
Upstream bonded channels
Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts
1 | ATDMA | 0 | 0 | 0 | 0 |
2 | ATDMA | 0 | 0 | 0 | 0 |
3 | ATDMA | 0 | 0 | 0 | 0 |
4 | ATDMA | 0 | 0 | 0 | 0 |
General Configuration
Network access | Allowed |
Maximum Number of CPEs | 1 |
Baseline Privacy | Enabled |
DOCSIS Mode | Docsis30 |
Config file | cmreg-vmdg505-rtsxxl35016u+voc-b.cm |
Primary Downstream Service Flow
SFID | 121724 |
Max Traffic Rate | 402500089 |
Max Traffic Burst | 42600 |
Min Traffic Rate | 0 |
Primary Upstream Service Flow
SFID | 121723 |
Max Traffic Rate | 38500089 |
Max Traffic Burst | 42600 |
Min Traffic Rate | 0 |
Max Concatenated Burst | 42600 |
Scheduling Type | BestEffort |
on 26-01-2020 10:22
Network Log
26/01/2020 10:07:5 | Warning! | Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
26/01/2020 10:07:6 | Warning! | RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
26/01/2020 10:07:25 | Warning! | Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
26/01/2020 10:07:26 | Warning! | RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
26/01/2020 10:07:33 | Warning! | Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
26/01/2020 10:07:41 | Warning! | RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
26/01/2020 10:08:47 | Warning! | Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
26/01/2020 10:08:48 | Warning! | RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
26/01/2020 10:09:23 | Warning! | Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
26/01/2020 10:09:26 | Warning! | RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
26/01/2020 10:10:27 | Warning! | Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
26/01/2020 10:10:28 | Warning! | RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
26/01/2020 10:11:57 | Warning! | Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
26/01/2020 10:12:0 | Warning! | RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
26/01/2020 10:12:15 | Warning! | Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
26/01/2020 10:12:15 | Warning! | RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
26/01/2020 10:12:45 | Warning! | Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
26/01/2020 10:12:46 | Warning! | RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
26/01/2020 10:12:53 | Warning! | Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
26/01/2020 10:12:55 | Warning! | RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
on 28-01-2020 10:51
Thank you for your post Oosanders and sorry to hear you're experiencing some broadband issues.
Have you contacted our team in regards to this since your post?
If you still require some assistance could you please confirm if your Hub is in modem mode?
Let us know, Emily.
on 28-01-2020 10:53
Hi Emily,
I haven't contacted anyone, I was going to await your recommendation on this forum before doing so.
Our hub is in Router mode as we use it on both Wifi + Ethernet
Thanks,
on 28-01-2020 10:58
No problem, if this is the case I'd like to take a look into the account so I'll pop you over a private message.
Can you please respond to this by going to the purple envelope in the top right of your screen.
Thank you, Emily.
on 28-01-2020 11:18
Upstream power is too high and Downstream channels are showing noise ingress, especially Channel 11.
You will need an engineer to sort this out. However in the meantime, check all connections are tight and there are no unterminated ends anywhere on the cables.
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on 28-01-2020 11:24
In this case there's a known area fault relating to SNR, the information on this was given over private message.
Thank you for your assistance though @Adduxi.
Thank you, Emily.
on 03-09-2020 14:13
Hi Emily,
Maybe you can help me too. I am experiencing a similar issue. I had a 500MB service installed last Saturday. It mostly runs around 60-90MB but can, as few times a day, jump to 500MB+ (and then go back down to 60-90MB a few mins later). Most of the time, the service is slow.
I have an engineer coming next week but is there anything I can do myself or that I can raise directly with the engineer when they turn up?
Thanks,
Keith