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HillHopper
Newbie
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Message 1 of 12

VDSL - Problems with network latency

Hi,

I have an ongoing problem with BT Infinity FTTC.

The issue is poor broadband speeds at peak times.

My router a Billion 8800NL is stable with a downspeed of approx 10meg and 6dB margin and upspeed 

I have perfomed router stats and trace routes over the past  few weeks and the problem is network latency between teh FTTC cabinet and BT's main backhaul.

I have rasied several fault reports over the past year or so, and a further two during the past month as the problem is getting worse, making the internet practially unusable at the weekend.

I find it difficult to get through the helpdesk to someone who actually understands the technical issues and doesn't ask me to reset the router or change the 5.8GHz SSID (even when I tell them I'm using Ethernet).

I have tried sending stat data but BT don't seem to undersand how to use it (or can't be bothered to even look).

My past two fault reports have been closed and shown as "fault fixed" when it hasn't. 

The only way to reopen them seems to be to create a new fault report and go through the whole process again from scratch.

As I'm sure many folks on here have suffered the same frustrations with BT, are there any suggestions as how to move this problem forward ?

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11 REPLIES 11
Distinguished Guru
Distinguished Guru
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Message 2 of 12

Re: VDSL - Problems with network latency

How did you manage to pin down the problem to between the FTTC cab and backhaul?

Could you provide more info to show the problem? e.g. tracerts etc.

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Distinguished Sage
Distinguished Sage
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Message 3 of 12

Re: VDSL - Problems with network latency

post stats from your router

run btspeedtester diagnostic test and post results must be done with wired connection  http://www.speedtest.btwholesale.com/

check for line noise  dial 17070 option 2  should be silent and best with corded phone



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HillHopper
Newbie
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Message 4 of 12

Re: VDSL - Problems with network latency

When the problem is present the latency is so bad that the BT speedtest will not function.

There is no line noise I have previously had Openreach engineers test the line and have had three engineer visits.

My router stats are solid and I have very few errored seconds.

The router is not the problem
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Distinguished Sage
Distinguished Sage
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Message 5 of 12

Re: VDSL - Problems with network latency

are you using wired or wireless connection



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Distinguished Sage
Distinguished Sage
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Message 6 of 12

Re: VDSL - Problems with network latency

Probaby too many users sharing the same backhaul link. BT Wholesale may be aware of capacity issues.

If you can specify which exchange your cabinet is connected to, one of the moderators may be able to look to see if there are any congested virtual paths.

 

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HillHopper
Newbie
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Message 7 of 12

Re: VDSL - Problems with network latency

Pingplotter.png

Averaged over the past week - note the peaks in latency around midday.


Pingplotter graph.png

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HillHopper
Newbie
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Message 8 of 12

Re: VDSL - Problems with network latency

Wired as sated in my original post
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HillHopper
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Message 9 of 12

Re: VDSL - Problems with network latency

Martock.png

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HillHopper
Newbie
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Message 10 of 12

Re: VDSL - Problems with network latency

VDSL Stats.png

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