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Spindizzy2012
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Flabby Hub3

We have been having issues intermittently with our Hub3 for some time now, including loss of either the 2.4Ghz and more often the 5Ghz channel ; slow wifi and poor download speeds.This post is about our download speeds which are quite flabby at times.

It is 200Mb connection. At worst it has been running at 20Mb and at the very best 80Mb depending on the time of day.

I have followed all of the advice available but not resolved.

So I am seeking our help folks, if you could be so good as to cast your eyes over the following data, which is all greek to me.

Many thanks

Network LogTime Priority Description
25/08/2021 11:40:12noticeLAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
23/08/2021 08:22:13criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
23/08/2021 08:17:37criticalReceived Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
23/08/2021 08:15:34Warning!Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
23/08/2021 08:15:31Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
23/08/2021 08:15:31criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
23/08/2021 08:15:30Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
23/08/2021 08:15:30criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
21/08/2021 05:54:16ErrorDHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
20/08/2021 12:00:47criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/08/2021 17:24:16ErrorDHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
15/08/2021 11:22:4noticeLAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
15/08/2021 08:49:6criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/08/2021 12:07:25noticeLAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/08/2021 05:24:16ErrorDHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
11/08/2021 08:54:43criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
10/08/2021 17:24:16ErrorDHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
07/08/2021 07:24:28criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
07/08/2021 05:24:16ErrorDHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
04/08/2021 17:07:1criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

 

 
Upstream bonded channelsChannel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID
13940008834.8512064 qam4
24620000035512064 qam3
35370000036512064 qam2
43260000034.8512064 qam5


Upstream bonded channelsChannel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts
1ATDMA0000
2ATDMA0000
3ATDMA0000
4ATDMA0000
Downstream bonded channelsChannel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID
1299000000-0.538256 qam21
22030000001.738256 qam9
32110000001.938256 qam10
42190000001.538256 qam11
5227000000138256 qam12
62350000000.238256 qam13
7243000000038256 qam14
82510000000.538256 qam15
92590000000.538256 qam16
102670000000.238256 qam17
11275000000038256 qam18
12283000000038256 qam19
13291000000-0.238256 qam20
14307000000-3.237256 qam22
15315000000-2.437256 qam23
16323000000-1.738256 qam24
17331000000-1.738256 qam25
18339000000-2.238256 qam26
19347000000-2.538256 qam27
20355000000-338256 qam28
21363000000-338256 qam29
22371000000-338256 qam30
23379000000-337256 qam31
24387000000-3.238256 qam32


Downstream bonded channelsChannel Locked Status RxMER (dB) Pre RS Errors Post RS Errors
1Locked38.990
2Locked38.900
3Locked38.650
4Locked38.960
5Locked38.940
6Locked38.660
7Locked38.600
8Locked38.970
9Locked38.960
10Locked38.970
11Locked38.950
12Locked38.9120
13Locked38.960
14Locked37.6220
15Locked37.6280
16Locked38.670
17Locked38.6100
18Locked38.660
19Locked38.6160
20Locked38.680
21Locked38.6210
22Locked38.6140
23Locked37.6140
24Locked38.67

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jem101
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Re: Flabby Hub3

The figures you posted are all absolutely fine, a small cluster of errors around 8:15 on 23rd but that can easily be a one-off, the others are all infrequent and is fairly normal. The hub data only measures the status of the connection into the hub via the cable, nothing at all about the wifi or any wired devices.

So this is starting to look like it's a wifi issue rather than a connectivity thing, out of interest do you have any devices connected via ethernet cable to compare, i.e. do these drop out as well?

Spindizzy2012
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Re: Flabby Hub3

jem 101 thank you very much for the prompt reply.

Our V6 box is connected by ethernet and an XBoxOne.

The speeds I quoted 20Mb to 80Mb are derived by connecting my laptop via ethernet to the Hub 3. Wifi speeds are roughly half on those speeds I quoted.

Does that give you the infomation you need?

Many thanks

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Megan_L
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Re: Flabby Hub3

Hiya Spindizzy2012,

Thanks for using the forums to get this issue with your broadband looked into, I am sorry if this has been causing some frustration. I would be more than happy to look into this for you.

I've already taken the time to check your services on my side and can see straight away that your downstream levels are out of spec, this will be causing your issues with slow speeds. It will also need an engineer to resolve which I will happily book for you over a PM 🙂 I'll send this over to you now so we can get it rolling! 

WIFI speeds will always be slower than Ethernet wired connections so please bear that in mind for future. If you need a fast, reliable connection for work or gaming, always use Ethernet!

Thanks,

Megan_L

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Megan_L
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Re: Flabby Hub3

Hi Spindizzy2012,

Thanks for chatting with me in our PM, I have now booked an engineer for your downstream woes.

If you need to check, change or cancel the appointment, you can do so on your Online Account.

Just for future issues with your services and for any other users that are looking at this thread for help, I have a few links below that might help with general issues - 

  • Our Service Checker is a good tool to use to check if there are any area outages ongoing with Broadband, TV, Landline and Mobile. It usually lets you know what is wrong and how long it's going to take for the engineers to fix (estimated time of course)
  • We also have a good section for faults on our website here - Help Website - it will give you flows for diagnosing and rectifying faults on a multitude of aspects. A really good link to bookmark!  

Let us all know how you get on with the engineer 🙂

Thanks,

Megan_L

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