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HUB 4 1gb connection speeds of 80mb if im lucky

Cyberstorm
Tuning in

HI Everyone

So having an issue with many phone calls and chats and its getting no where so i'm going to post here to see if this helps or i might just downgrade again or even leave virgin media at this point the amount of effort it has cost me, anyways i digress the main issue is my DOCSYS 3.1 connection.

I have rebooted and hard rebooted countless times now and things stay the same. i haven't gone above 80 mb since the 6th aug. 

I believe my modulation should be QAM4096 but its currently QAM1024, also getting a-lot of errors on my docsys3.0 connections, here is a print out of my router status downstreams, upstreams are great.

7 REPLIES 7

Cyberstorm
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My stats

3.0 Downstream channelsChannel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID
11390000001.59999840.366287QAM2561
21470000001.00000040.366287QAM2562
31550000000.59999838.983261QAM2563
41630000000.20000138.605377QAM2564
51710000000.20000138.983261QAM2565
61790000000.00000038.983261QAM2566
7187000000-0.09999840.946209QAM2567
81950000000.09999840.366287QAM2568
9203000000-0.09999840.946209QAM2569
10211000000-0.50000040.366287QAM25610
11219000000-0.70000140.946209QAM25611
12227000000-0.59999840.946209QAM25612
13235000000-0.90000240.366287QAM25613
14243000000-1.20000140.366287QAM25614
15251000000-1.79999940.366287QAM25615
16259000000-2.20000140.366287QAM25616
17267000000-2.70000140.366287QAM25617
18275000000-2.70000140.366287QAM25618
19283000000-1.79999940.946209QAM25619
20291000000-1.09999840.946209QAM25620
21299000000-0.59999840.946209QAM25621
22307000000-1.70000140.366287QAM25622
23315000000-2.40000240.946209QAM25623
24323000000-2.59999840.366287QAM25624
25331000000-2.79999940.946209QAM25625
26339000000-2.79999940.366287QAM25626
27347000000-3.00000040.366287QAM25627
28355000000-2.40000240.946209QAM25628
29363000000-2.40000240.946209QAM25629
30371000000-2.70000140.946209QAM25630
31379000000-3.09999840.366287QAM25631



3.0 Downstream channelsChannel Lock Status RxMER (dB) Pre RS Errors Post RS Errors
1Locked40.3662874733516959
2Locked40.3662878851327003
3Locked38.9832618898342884
4Locked38.60537710841142611
5Locked38.9832615846661369
6Locked38.9832611488155343
7Locked40.94620922290
8Locked40.36628700
9Locked40.94620900
10Locked40.36628700
11Locked40.94620900
12Locked40.94620900
13Locked40.36628700
14Locked40.36628700
15Locked40.36628700
16Locked40.36628700
17Locked40.36628700
18Locked40.36628700
19Locked40.94620900
20Locked40.94620900
21Locked40.94620900
22Locked40.36628700
23Locked40.94620900
24Locked40.36628700
25Locked40.94620900
26Locked40.36628700
27Locked40.36628700
28Locked40.94620900
29Locked40.94620900
30Locked40.94620900
31Locked40.36628700

 

 

3.1 Downstream channelsChannel Channel Width (MHz) FFT Type Number of Active Subcarriers Modulation (Active Profile) First Active Subcarrier (Hz)
159964K1880QAM1024759


3.1 Downstream channelsChannel ID Lock Status RxMER Data (dB) PLC Power (dBmV) Correcteds (Active Profile) Uncorrectables (Active Profile)
159Locked40-9.445628760

 

3.0 Upstream channels

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

16030000048.0205995120 KSym/sec64QAM9
23940000045.2705995120 KSym/sec64QAM12
34620000046.2705995120 KSym/sec64QAM11
45370000046.7705995120 KSym/sec64QAM10

 

3.0 Upstream channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

1US_TYPE_STDMA0000
2US_TYPE_STDMA0000
3US_TYPE_STDMA0000
4US_TYPE_STDMA0000

 

Hello buddy.

Yes 3.1 channel should be 4096, I suspect it's dropping because the power level is too low. It's a touch noisy too at only 40 db.

3.0 channels power are on the low side but within spec, at least at the time you took the data.

The worrying thing is the post rs errors on your 3.0 downstream.

You need a bit of a tune up/levels adjusted perhaps that will eliminate the noise.

Either way it's not your equipment, it's up to virgin to fix it.

Thanks for the reply and confirming that information. maybe i'm not going insane... maybe 😂

Now to wait for virgin media support to get back to me 😂

I unmarked your answer as helpful, because apparently that makes the thread solved

Hi Cyberstorm

 

Thanks for posting and welcome to the community. 

 

Apologies for the broadband issue. I can see you've had a tech visit today - has everything been resolved? 

 

Let me know if you need further assistance.

 

Kind regards,

 

John_GS
Forum Team


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