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gracefield
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Erratic speed

Hi, our Virgin Media broadband normally operates at around 180-200 mb/s but lately, it has become very erratic, the speeds are always different. Sometimes it falls below 90mb/s. The variation is almost constant, it never seems to stay at a constant speed.

Upstairs, we are very far from the hub and connect using powerline connections through the sockets. Not ideal, but this has worked well until now. Speeds are much lower but they have been steady and quite workable until now.

The drop in speed isn't as noticeable downstairs because it is still fast, even if it drops by half and unless you are testing it, you don't really notice.

But I think that the lower speed upstairs means that the newly erratic performance from the hub is much more noticeable. Sometimes it takes an hour to download a 1gb file, you cannot have simultaneous downloads now and you can't really access the web when it is downloading. Using the web upstairs has become a real trial.

Can anyone help with any suggestions? I have restarted the hub several times, restarted computers, changed the powerline adapter out, nothing helps. As I say, we were all OK until a day or two ago but this is driving me nuts.

Thank-you

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MikeRobbo
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Alessandro Volta
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Message 2 of 16
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Re: Erratic speed

How are you connecting your device[s], Wi-Fi or ethernet cable ?


*********************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************
BT Smart Hub 2 with 70Mbs Download,18Mbs Upload, 9.17ms Latency & 0.35ms Jitter.
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gracefield
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Message 3 of 16
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Re: Erratic speed

Hi

Thanks for replying. My wife's office downstairs is connected via wireless, she has a couple of PCs and a printer.

Upstairs, I am connecting via Netgear Powerlink adaptors through the electrical sockets. We also have an elderly BT extender plugged in at the top of the stairs which provides a wireless option, but the distance from the hub is great and there are a lot of walls, so it is very slow, it does for mobile devices upstairs.

As I say, we are experiencing very erratic, rapid drops and gains in speed. It's not that noticeable downstairs because they are running at around 200mb/s, but upstairs, where the speed is already much reduced, it is very noticeable and nothing seems to cure it.

We are about to have a mesh installed, but I need to get the base speed issue sorted first.

Many thanks

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MikeRobbo
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Alessandro Volta
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Message 4 of 16
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Re: Erratic speed

Have you checked the 'Check Service Status' at the top of the page ?

If nothing is showing try phoning 0800 561 0061, this will tell you of more local issues that may be affecting the area. Be aware that it isn't a manned line.

Go round all the accessible internal and external co-ax connections and ensure that they are finger tight.

If everything above is OK we need do some more troubleshooting; to start with …

 

Can you set up a Broadband Quality Monitor (BQM) at thinkbroadband.com - this will give you an insight into what is happening with the signal at the other side of the Hub, it will take a few hours to get any kind of trend showing although you should post the link straight away.

Post a link to your BQM on here.

Instructions for posting BQM Link

Under your BQM graph are two links in red.

Click the lower link (Share Live Graph) then click generate.

Copy the text in the Direct Link box, beware, there may be more text than you can see.

On here click the Link icon (2 links chain to the left of the camera icon)

In the URL box paste the link you copied and in the ‘text to display’ box write My BQM then click OK - you can post the link straight away.

Then

 

Can you please

Type 192.168.0.1 (192.168.100.1 in Modem mode) into your browser URL bar and press enter. 

Hub 2 & 3 When the page appears DO NOT LOG IN but click ‘Check Router Status’.

Hub 4 When the page appears LOG IN then click ‘Check Router Status’.

Copy and paste the contents of the Downstream, Upstream and Network Log tabs onto here, if you get a yellow warning click the Post button again. Use one post for each tab if you wish. Please do not use screen grabs.

A Guru will be along soon to decipher the info.


*********************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************
BT Smart Hub 2 with 70Mbs Download,18Mbs Upload, 9.17ms Latency & 0.35ms Jitter.
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gracefield
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Message 5 of 16
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Re: Erratic speed

My BQM 

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gracefield
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Re: Erratic speed

Hi Mike

Downstream 483000000 locked

Upstream 53700021 locked

Provisioning status online

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MikeRobbo
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Message 7 of 16
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Re: Erratic speed


@gracefield wrote:

My BQM 


I can see dropped packets already ...

dropped


*********************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************
BT Smart Hub 2 with 70Mbs Download,18Mbs Upload, 9.17ms Latency & 0.35ms Jitter.
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gracefield
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Message 8 of 16
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Re: Erratic speed

OK, I know what you want re the other info, but I am not able to post at the moment, apparently I am post flooding, I will have that info with you in a bit...

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gracefield
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Re: Erratic speed

Channel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID
1483000000-0.938256 qam32
22030000001.240256 qam9
3211000000140256 qam10
4219000000140256 qam11
5227000000140256 qam12
6235000000140256 qam13
72430000000.740256 qam14
82510000000.740256 qam15
92590000000.240256 qam16
102670000000.240256 qam17
11275000000040256 qam18
12283000000040256 qam19
13291000000-0.238256 qam20
14299000000-0.238256 qam21
15307000000-0.440256 qam22
16315000000-0.440256 qam23
17323000000-0.438256 qam24
18427000000-0.738256 qam25
19435000000-0.738256 qam26
20443000000-0.938256 qam27
21451000000-0.938256 qam28
22459000000-0.738256 qam29
23467000000-0.938256 qam30
24475000000-0.738256 qam31


Downstream bonded channelsChannel Locked Status RxMER (dB) Pre RS Errors Post RS Errors
1Locked38.610940
2Locked40.3810
3Locked40.9662
4Locked40.31220
5Locked40.31150
6Locked40.31160
7Locked40.31310
8Locked40.31230
9Locked40.31340
10Locked40.31200
11Locked40.913011
12Locked40.91410
13Locked38.91918
14Locked38.92480
15Locked40.91890
16Locked40.32190
17Locked38.91970
18Locked38.98130
19Locked38.99210
20Locked38.69200
21Locked38.69850
22Locked38.611250
23Locked38.911430
24Locked38.910880
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gracefield
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Message 10 of 16
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Re: Erratic speed

Upstream bonded channelsChannel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID
15370002142.8512064 qam6
23940021742.8512064 qam8
34620008042.8512064 qam7
46030008443512064 qam5


Upstream bonded channelsChannel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts
1ATDMA0030
2ATDMA0020
3ATDMA0030
4ATDMA0010
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