25-07-2021 00:59 - edited 25-07-2021 01:06
I'm on the Vivid200 Broadband Package and have the Super Hub 2, which I have in modem only mode connecting directly to my PC via Ethernet. When I perform Speed Tests I typically notice I get 220Mbps Download and apparently 21Mbps Upload. Which I believe should be perfectly fine for me to be able to stream to Twitch at 6Mbps without any issues. Yet in recent time I've noticed whilst I'll be midstream I suddenly start dropping a ton of frames and then my OBS software will report it has lost network connection. When I check my Upload Speed at this point it's always at 0Mbps. I go check the system status page on the Virgin Website to see if there are any issues, I even run the test on my equipment, which usually just tells me to restart my Hub, which I do but the problem persists after restart. Usually I find that over a couple of hours the Speed does return to normal, but obviously during that time I'm completely unable to stream.
Here is the data from checking my router status:
Cable Modem StatusItem Status Comments
Acquired Downstream Channel (Hz) | 139000000 | Locked |
Ranged Upstream Channel (Hz) | 53700000 | Success |
Provisioning State | OK | Operational |
Downstream DS-1 DS-2 DS-3 DS-4 DS-5 DS-6 DS-7 DS-8
Frequency (Hz) | 139000000 | 147000000 | 155000000 | 163000000 | 171000000 | 179000000 | 187000000 | 195000000 |
Lock Status(QAM Lock/FEC Sync/MPEG Lock) | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked |
Channel ID | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
Modulation | 256QAM | 256QAM | 256QAM | 256QAM | 256QAM | 256QAM | 256QAM | 256QAM |
Symbol Rate (Msym/sec) | 6.952000 | 6.952000 | 6.952000 | 6.952000 | 6.952000 | 6.952000 | 6.952000 | 6.952000 |
Interleave Depth | I=12 J=17 | I=12 J=17 | I=12 J=17 | I=12 J=17 | I=12 J=17 | I=12 J=17 | I=12 J=17 | I=12 J=17 |
Power Level (dBmV) | 6.32 | 6.32 | 6.37 | 6.44 | 6.25 | 6.11 | 6.06 | 6.04 |
RxMER (dB) | 37.94 | 37.94 | 37.94 | 37.94 | 38.26 | 38.26 | 38.26 | 38.26 |
Pre RS Errors | 1100 | 1004 | 349 | 345 | 313 | 299 | 300 | 276 |
Post RS Errors | 291 | 279 | 281 | 290 | 301 | 291 | 292 | 273 |
Upstream US-1 US-2 US-3 US-4
Channel Type | 2.0 | 2.0 | 2.0 | 2.0 |
Channel ID | 2 | 4 | 3 | 1 |
Frequency (Hz) | 53700000 | 39400000 | 46200000 | 60300000 |
Ranging Status | Success | Success | Success | Success |
Modulation | 64QAM | 64QAM | 64QAM | 64QAM |
Symbol Rate (Sym/sec) | 5120000 | 5120000 | 5120000 | 5120000 |
Mini-Slot Size | 2 | 2 | 2 | 2 |
Power Level (dBmV) | 48.54 | 46.79 | 47.29 | 49.54 |
T1 Timeouts | 0 | 0 | 0 | 0 |
T2 Timeouts | 0 | 0 | 0 | 0 |
T3 Timeouts | 0 | 0 | 0 | 0 |
T4 Timeouts | 0 | 0 | 0 | 0 |
Upstream Burst Req(1) Init Maint(3) Per Maint(4) Adv Short(9) Adv Long(10) Adv UGS(11)
Modulation Type | 16QAM | QPSK | 16QAM | 64QAM | 64QAM | 16QAM |
Differential Encoding | OFF | OFF | OFF | OFF | OFF | OFF |
Preamble Length | 56 | 640 | 384 | 104 | 104 | 104 |
Preamble Value Offset | 652 | 0 | 0 | 716 | 716 | 716 |
FEC Error Correction (T) | 0 | 5 | 5 | 10 | 16 | 5 |
FEC Codeword Information Bytes (K) | 16 | 34 | 34 | 81 | 223 | 86 |
Maximum Burst Size | 0 | 0 | 0 | 3 | 255 | 255 |
Guard Time Size | 8 | 48 | 48 | 8 | 8 | 8 |
Last Codeword Length | Fixed | Fixed | Fixed | Shortened | Shortened | Shortened |
Scrambler On/Off | ON | ON | ON | ON | ON | ON |
General Configuration
Network Access | Allowed |
Maximum Number of CPEs | 1 |
Baseline Privacy | Enabled |
DOCSIS Mode | EuroDOCSIS 3.0 |
Config File |
Primary Downstream Service Flow
SFID | 46690 |
Max Traffic Rate | 230000061 bps |
Max Traffic Burst | 42600 bytes |
Min Traffic Rate | 0 bps |
Primary Upstream Service Flow
SFID | 46689 |
Max Traffic Rate | 22000061 bps |
Max Traffic Burst | 42600 bytes |
Min Traffic Rate | 0 bps |
Max Concatenated Burst | 42600 bytes |
Scheduling Type | Best Effort |
Right now the modem is working fine and I'm getting the correct speeds when I check. However I really don't want to see this problem keep repeating. Especially when it happened today at 3:30pm and it was nearly 7:30pm before my speed was back to normal.
on 25-07-2021 18:04
Your power levels are good both up and down, downstream SNR is good, upstream modulation looks OK, but the downstream post-RS error count looks high, and might indicate a problem. On the basis of what is visible so far VM are unlikely to commit a technician, so I'd suggest that you setup a BQM (see below), and also post up the hub's network log.
Setup a BQM over at https://www.thinkbroadband.com/broadband/monitoring/quality that'll show what's going on with your VM connection. Post a LINK to a LIVE, SHARED graph here and we'll see what's happening. Usually needs to run for 24 hours before we can draw reasonable conclusions, but the live graph will continuously update so you can post the link immediately.
25-07-2021 18:16 - edited 25-07-2021 18:18
As its an SH2 (I have one) they always have some RS error counts - is a little feature of the way it connects and not usually an issue 😎
I noted you are in modem mode hence with no router. Have you tried plugging into another ethernet port on the Hub and also changed to a new ethernet cable?
25-07-2021 19:39 - edited 25-07-2021 19:41
Here is the link to my BQM
on 27-07-2021 08:33
Hello cwatty
Thanks for the post
Can we please ask how things are looking now?
Gareth_L
on 27-07-2021 15:29
on 27-07-2021 15:32
Thanks cwatty
I will check back with you tomorrow then
Good luck with the Live stream
Gareth_L
on 28-07-2021 11:55
Hi cwatty
Hope this message reaches you
How was the Streaming last night?
Any issues at all
Gareth_L
on 28-07-2021 12:35
on 29-07-2021 12:43
Hello again cwatty
Fingers crossed it was another trouble free day
Gareth_L