Menu
Reply
Highlighted
  • 9
  • 0
  • 0
Joining in
555 Views
Message 1 of 11
Flag for a moderator

Vivid 350 poor speeds

Hi all

we had vivid 350 for the past 6 months and we always had download speeds of more than 350mbps. Since last Wednesday our speeds have gone down to a range from ~7mbps to 80mbps.

i have reported this to CS who did some tests etc and sent me an replacement hub. After installing my new hub problem still persists and has become even worse. However the CS advisor tells me there is nothing wrong with their system so they cant send out an engineer. 

in my opinion if my speed is gone down from 350mbps to 7mbps there is definitely a fault somewhere! Can anyone help?

0 Kudos
Reply
Highlighted
  • 19.58K
  • 1.72K
  • 4.28K
Very Insightful Person
Very Insightful Person
538 Views
Message 2 of 11
Flag for a moderator

Re: Vivid 350 poor speeds

Would need to check the signal levels if could go to http://192.168.0.1 or if using modem mode http://192.168.100.1 clicking router status top right or bottom of page depending on hub [no need to login - depending on hub] and if could copy/paste the downstream, upstream, network log, don't worry about the formatting we can easily read it.. try and avoid using screen shots..

also this via wired/wireless?, if wireless can you test via wired

I'm a Very Insightful Person, I'm here to share knowledge, I don't work for Virgin Media. Learn more

Have I helped? Click Mark as Helpful Answer or use Kudos to say thanks

0 Kudos
Reply
Highlighted
  • 9
  • 0
  • 0
Joining in
530 Views
Message 3 of 11
Flag for a moderator

Re: Vivid 350 poor speeds

Downstream bonded channels

1139000000436256 qam1
2147000000436256 qam2
31550000003.736256 qam3
41630000003.736256 qam4
51710000003.736256 qam5
61790000003.536256 qam6
71870000003.736256 qam7
81950000003.436256 qam8
92030000003.236256 qam9
102110000003.236256 qam10
112190000003.236256 qam11
122270000003.236256 qam12
132350000003.236256 qam13
14243000000336256 qam14
152510000003.236256 qam15
16259000000336256 qam16
172670000003.237256 qam17
182750000003.236256 qam18
192830000003.236256 qam19
202910000003.237256 qam20
212990000003.536256 qam21
223070000003.536256 qam22
233150000003.536256 qam23
243230000003.537256 qam24



Downstream bonded channels

1Locked36.35807628206
2Locked36.35844252748
3Locked36.67889226258
4Locked36.37227822907
5Locked36.34579421056
6Locked36.64463721722
7Locked36.34544722433
8Locked36.65764223972
9Locked36.65095923816
10Locked36.62655924790
11Locked36.67863116417
12Locked36.6433017740
13Locked36.61035826310
14Locked36.61125724774
15Locked36.6977923304
16Locked36.6980424468
17Locked37.31216724875
18Locked36.6927926263
19Locked36.61046323803
20Locked37.3932122836
21Locked36.61199220787
22Locked36.61110320944
23Locked36.61006820717
24Locked37.32828021166
0 Kudos
Reply
Highlighted
  • 9
  • 0
  • 0
Joining in
529 Views
Message 4 of 11
Flag for a moderator

Re: Vivid 350 poor speeds

Acquired Downstream Channel (Hz)
139000000
Locked
Ranged Upstream Channel (Hz)
60300000
Locked
Provisioning State
Online
0 Kudos
Reply
Highlighted
  • 9
  • 0
  • 0
Joining in
431 Views
Message 5 of 11
Flag for a moderator

Re: Vivid 350 poor speeds

Upstream bonded channels
Channel
Frequency (Hz)
Power (dBmV)
Symbol Rate (ksps)
Modulation
Channel ID
1
60300000
4.325
5120
64 qam
1
2
46200108
4.3
5120
64 qam
3
3
53700155
4.325
5120
64 qam
2
4
39399869
4.275
5120
64 qam
4


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
0Upstream bonded channels
Channel
Frequency (Hz)
Power (dBmV)
Symbol Rate (ksps)
Modulation
Channel ID
1
60300000
4.325
5120
64 qam
1
2
46200108
4.3
5120
64 qam
3
3
53700155
4.325
5120
64 qam
2
4
39399869
4.275
5120
64 qam
4


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
0Upstream bonded channels
Channel
Frequency (Hz)
Power (dBmV)
Symbol Rate (ksps)
Modulation
Channel ID
1
60300000
4.325
5120
64 qam
1
2
46200108
4.3
5120
64 qam
3
3
53700155
4.325
5120
64 qam
2
4
39399869
4.275
5120
64 qam
4


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
0Upstream bonded channels
Channel
Frequency (Hz)
Power (dBmV)
Symbol Rate (ksps)
Modulation
Channel ID
1
60300000
4.325
5120
64 qam
1
2
46200108
4.3
5120
64 qam
3
3
53700155
4.325
5120
64 qam
2
4
39399869
4.275
5120
64 qam
4


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
Upstream bonded channels
Channel
Frequency (Hz)
Power (dBmV)
Symbol Rate (ksps)
Modulation
Channel ID
1
60300000
4.325
5120
64 qam
1
2
46200108
4.3
5120
64 qam
3
3
53700155
4.325
5120
64 qam
2
4
39399869
4.275
5120
64 qam
4


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

0 Kudos
Reply
Highlighted
  • 9
  • 0
  • 0
Joining in
525 Views
Message 6 of 11
Flag for a moderator

Re: Vivid 350 poor speeds

General Configuration
Network access
Allowed
Maximum Number of CPEs
1
Baseline Privacy
Enabled
DOCSIS Mode
Docsis30
Config file
cmreg-vmdg505-rtsxxl35016u-b.cm


Primary Downstream Service Flow
SFID
218686
Max Traffic Rate
402500089
Max Traffic Burst
42600
Min Traffic Rate
0


Primary Upstream Service Flow
SFID
218685
Max Traffic Rate
38500089
Max Traffic Burst
42600
Min Traffic Rate
0
Max Concatenated Burst
42600
Scheduling Type
BestEffort

0 Kudos
Reply
Highlighted
  • 9
  • 0
  • 0
Joining in
523 Views
Message 7 of 11
Flag for a moderator

Re: Vivid 350 poor speeds

Network Log
Time
Priority
Description
10/10/2019 17:31:48
critical
SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
10/10/2019 17:31:52
Warning!
Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
10/10/2019 17:31:57
critical
SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
10/10/2019 17:32:0
Warning!
RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/01/1970 00:02:33
critical
No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
10/10/2019 21:23:21
critical
SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
10/10/2019 21:23:22
Warning!
RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
10/10/2019 21:23:23
critical
SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
10/10/2019 21:23:23
Warning!
RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
10/10/2019 21:23:23
critical
SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
10/10/2019 21:23:28
Warning!
Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
10/10/2019 21:23:38
Warning!
RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
10/10/2019 21:23:39
critical
SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
10/10/2019 21:23:39
Warning!
RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
10/10/2019 21:36:30
critical
SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
10/10/2019 21:36:30
Warning!
RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
10/10/2019 21:36:32
critical
SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
10/10/2019 21:36:32
Warning!
RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
10/10/2019 21:36:38
Warning!
Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
10/10/2019 21:36:48
Warning!
RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

0 Kudos
Reply
Highlighted
  • 9
  • 0
  • 0
Joining in
522 Views
Message 8 of 11
Flag for a moderator

Re: Vivid 350 poor speeds

I have used both wired and wireless connections to test, both give out similar results.
0 Kudos
Reply
Highlighted
  • 19.58K
  • 1.72K
  • 4.28K
Very Insightful Person
Very Insightful Person
417 Views
Message 9 of 11
Flag for a moderator

Re: Vivid 350 poor speeds

Signal levels showing OK, but the counters on post-rs all over the place if could reboot hub/reset counters, and do multi downloads does the post-rs shoot backup

Since looking at possible network issue externally, the forum staff should reply in a day or so

I'm a Very Insightful Person, I'm here to share knowledge, I don't work for Virgin Media. Learn more

Have I helped? Click Mark as Helpful Answer or use Kudos to say thanks

0 Kudos
Reply
Highlighted
  • 9
  • 0
  • 0
Joining in
376 Views
Message 10 of 11
Flag for a moderator

Re: Vivid 350 poor speeds

Done several resets and roobots but doesn’t help. Same problem regardless of what i have tried. 

0 Kudos
Reply