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TMHUSSAIN's avatar
TMHUSSAIN
Settling in
2 days ago

Ongoing High Latency, Packet Loss – Engineer Visit Did Not Resolve

I'm experiencing ongoing issues with my Virgin Media broadband connection, specifically high and erratic latency with frequent ping spikes and occasional packet loss.

An engineer visited yesterday who reset the router and replaced all the cabling, including inside and outside the property.  Unfortunately, the latency issues continued immediately after the visit. Here's a snapshot from my Broadband Quality Monitor. You can see the latency issue is still occurring after the engineer visit at 1 pm.

I called Virgin Media support again, and the operator said that the engineer would come back within 1–2 hours. That never happened, and I’ve had no follow-up since..

 

Here are my Hub3 stats after the engineer reset my router yesterday.

 

Downstream bonded channels

ChannelFrequency (Hz)Power (dBmV)SNR (dB)ModulationChannel ID
115500000013.638256 qam3
21630000001438256 qam4
317100000014.538256 qam5
417900000014.938256 qam6
518700000015.138256 qam7
619500000015.338256 qam8
720300000015.140256 qam9
821100000015.138256 qam10
92190000001540256 qam11
102270000001540256 qam12
1123500000014.840256 qam13
1224300000014.840256 qam14
1325100000014.540256 qam15
1425900000014.438256 qam16
1526700000014.338256 qam17
1627500000014.338256 qam18
172830000001440256 qam19
182910000001438256 qam20
1929900000013.938256 qam21
2030700000014.140256 qam22
213150000001540256 qam23
2232300000015.640256 qam24
2341100000016.540256 qam25
244190000001640256 qam26



Downstream bonded channels

ChannelLocked StatusRxMER (dB)Pre RS ErrorsPost RS Errors
1Locked38.915000
2Locked38.911540
3Locked38.677236
4Locked38.66320
5Locked38.96470
6Locked38.96510
7Locked40.36760
8Locked38.98520
9Locked40.99750
10Locked40.311630
11Locked40.913910
12Locked40.314090
13Locked40.315680
14Locked38.917510
15Locked38.918960
16Locked38.919860
17Locked40.318600
18Locked38.926430
19Locked38.927270
20Locked40.324310
21Locked40.321500
22Locked40.317800
23Locked40.915550
24Locked40.915750

 

Upstream bonded channels

ChannelFrequency (Hz)Power (dBmV)Symbol Rate (ksps)ModulationChannel ID
14960000044512064 qam1
23010000044.3512064 qam4
32360000044.5512064 qam5
43660000044512064 qam3
54310000043.8512064 qam2



Upstream bonded channels

ChannelChannel TypeT1 TimeoutsT2 TimeoutsT3 TimeoutsT4 Timeouts
1ATDMA0010
2ATDMA0000
3ATDMA0000
4ATDMA0000
5ATDMA0000

3 Replies

  • Downstream power levels are too high. You will need an engineer back to possibly fit an attenuator. 

    • TMHUSSAIN's avatar
      TMHUSSAIN
      Settling in

      I brought that up yesterday, but the engineer was mainly focused on whether the speed was being met and said she saw no issue with the monitor she shad

  • legacy1's avatar
    legacy1
    Alessandro Volta

    Power levels maybe high but likely are not the cause for ping spikes it might be that the area is high load for the upstream a Docsis 3.1 hub with 3.1 upstream may help. It is also possible you have devices causing the ping spikes which will be harder to find out one way is to let the hub be free from anything that may cause it so change wifi password and unplug wire devices and let BQM ping if it spikes you know its VM network.