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Standard User deepdishdj
(newbie) Tue 26-Feb-13 20:02:14
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New FTTC and pings keep going up


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I had FTTC installed last monday through ZEN and to begin with my pings were around 15ms with no jitter. It then went up after a few days to the mid 20s with a little jitter. and a few days ago it rose again to around 36ms with a little more jitter as well.

I have connected my laptop directly to the openreach modem to check if its my router adding the ping but it returns the same results. I have also had some disconnections on the modem and each time it seems to do this it settles down and then the ping goes up.

Is this normal for fttc as most of the pings I have seen are a bit lower than mine and to be honest I am a bit disappointed. I had my adsl with zen as well and my ping was around 14ms lower with no jitter.

Thanks for any help or advice.
Administrator MrSaffron
(staff) Tue 26-Feb-13 22:01:32
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Re: New FTTC and pings keep going up


[re: deepdishdj] [link to this post]
 
The openreach system raises level of interleaving when it sees errors. The extra latency is an effect of this error correction

Andrew Ferguson, andrew@thinkbroadband.com
www.thinkbroadband.com - formerly known as ADSLguide.org.uk
The author of the above post is a thinkbroadband staff member. It may not constitute an official statement on behalf of thinkbroadband.
Standard User Ripley
(committed) Tue 26-Feb-13 22:24:50
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Re: New FTTC and pings keep going up


[re: deepdishdj] [link to this post]
 
Yeah same happened to me as the profile kicked in. Ping slowly increases and the speed may slowly lower, took about 3 weeks for mine to settle down.

Unfortnately its just the limitations of your line and the equipment in the cabinet doing its job.

Roll on fibre on demand!

Freeserve Dial-Up --> BTopenworld --> <n>ildram -->Talk Talk LLU --> ZeN
ASUS RT-AC66U
My Broadband Speed Test


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Standard User jchamier
(knowledge is power) Tue 26-Feb-13 22:27:14
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Re: New FTTC and pings keep going up


[re: deepdishdj] [link to this post]
 
In reply to a post by deepdishdj:
Is this normal for fttc as most of the pings I have seen are a bit lower than mine and to be honest I am a bit disappointed.


Depends where you are pinging; I'm on a BT Infinity service, and I'm interleaved. My old BE connection could manage 10ms or less to the BBC, but I get 19ms on Infinity.

C:\>ping bbc.net.uk

Pinging bbc.net.uk [212.58.246.90] with 32 bytes of data:
Reply from 212.58.246.90: bytes=32 time=19ms TTL=51
Reply from 212.58.246.90: bytes=32 time=18ms TTL=51
Reply from 212.58.246.90: bytes=32 time=19ms TTL=51
Reply from 212.58.246.90: bytes=32 time=18ms TTL=51

Ping statistics for 212.58.246.90:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 18ms, Maximum = 19ms, Average = 18ms

James BT Infinity 2 19/09/2012 - Estimate 44.6/6.5 - Install 52/12 - Actual 46 / 8 Mbps
Huawei VDSL -> Draytek router -> Apple Airport Extreme -> Belkin Switch -> Windows/Mac/Linux/NAS/Phone
13 years of broadband - 1999 ntl:(512k/1M)/BTbusiness(2M)/Metronet(2M)/Bulldog(8M/16M)/BE(19M/16M)/BT FTTC(46M)
Standard User deepdishdj
(newbie) Wed 27-Feb-13 13:22:58
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Re: New FTTC and pings keep going up


[re: jchamier] [link to this post]
 
this is what I get when I ping bbc.co.uk.

Ping statistics for 212.58.241.131:
Packets: Sent = 100, Received = 100, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 32ms, Maximum = 116ms, Average = 36ms

I have also just found out that every time my wife goes out she turns off the OR modem at the wall would this cause any problems?

Also whenever I unplug my router and plug my laptop straight into the OR modem my tbb graph turns completely red is this because the router does not respond to ping requests?

One more question. These are the details of my connection supplied by zen.

Line rate data
Upstream Downstream Sync Rate BRAS Profile Interleave Sync Date Date
20000 59730 61708 TR101 Auto 24-Feb-2013 17:58 24-Feb-2013 17:58
20000 62797 64876 TR101 Auto 21-Feb-2013 22:31 21-Feb-2013 22:31
15900 64791 66936 TR101 Auto 19-Feb-2013 18:03 19-Feb-2013 18:03
14000 64945 67096 TR101 Auto 18-Feb-2013 14:00 18-Feb-2013 14:00
14000 64945 67096 TR101 Auto 18-Feb-2013 13:59 18-Feb-2013 13:59
14000 64945 67096 TR101 Auto 18-Feb-2013 13:59 18-Feb-2013 13:59
14000 64945 67096 TR101 Auto 18-Feb-2013 13:58 18-Feb-2013 13:58
14000 64945 67096 TR101 Auto 18-Feb-2013 13:58 18-Feb-2013 13:58
14000 64945 67096 TR101 Auto 18-Feb-2013 13:57 18-Feb-2013 13:57
14000 64945 67096 TR101 Auto 18-Feb-2013 13:57 18-Feb-2013 13:57

I can get a full 20 up would that not mean I can get a bit faster on the down speed? I thought that meant I was reasonably close to the cab.
Standard User kasg
(fountain of knowledge) Wed 27-Feb-13 13:49:49
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Re: New FTTC and pings keep going up


[re: deepdishdj] [link to this post]
 
In reply to a post by deepdishdj:
I have also just found out that every time my wife goes out she turns off the OR modem at the wall would this cause any problems?

Unless she only goes out about once a week, yes - tell her to stop, immediately!

Kevin

plusnet Unlimited Fibre
Using OpenDNS
Domains and web hosting with TSOHOST
Standard User deepdishdj
(learned) Wed 27-Feb-13 13:53:19
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Re: New FTTC and pings keep going up


[re: kasg] [link to this post]
 
So this can cause problems. Might this possibly be the reason why my ping is increasing?

She goes out a lot and if I'm not in she turns off everything in the house at the socket. What can I say she loves the environment.
Standard User kasg
(fountain of knowledge) Wed 27-Feb-13 13:54:49
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Re: New FTTC and pings keep going up


[re: deepdishdj] [link to this post]
 
Could be. Turning things like that off every time you go out is madness, the power consumption is miniscule.

Kevin

plusnet Unlimited Fibre
Using OpenDNS
Domains and web hosting with TSOHOST
Standard User jchamier
(knowledge is power) Wed 27-Feb-13 19:14:07
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Re: New FTTC and pings keep going up


[re: deepdishdj] [link to this post]
 
In reply to a post by deepdishdj:
So this can cause problems. Might this possibly be the reason why my ping is increasing?


The DSLAM at the green box watches every time you power off and its convinced there is a problem, so it will increase your ping and worse it will slow your speeds down. Your Openreach modem needs to be left on for 3 to 6 months to sort this out.

The modem is using tiny amounts of power. Turning the computer off - good, turning the router and or modem off = bad.

James BT Infinity 2 19/09/2012 - Estimate 44.6/6.5 - Install 52/12 - Actual 46 / 8 Mbps
Huawei VDSL -> Draytek router -> Apple Airport Extreme -> Belkin Switch -> Windows/Mac/Linux/NAS/Phone
13 years of broadband - 1999 ntl:(512k/1M)/BTbusiness(2M)/Metronet(2M)/Bulldog(8M/16M)/BE(19M/16M)/BT FTTC(46M)
Standard User tommy45
(knowledge is power) Wed 27-Feb-13 20:04:23
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Re: New FTTC and pings keep going up


[re: jchamier] [link to this post]
 
In reply to a post by jchamier:
In reply to a post by deepdishdj:
So this can cause problems. Might this possibly be the reason why my ping is increasing?


The DSLAM at the green box watches every time you power off and its convinced there is a problem, so it will increase your ping and worse it will slow your speeds down. Your Openreach modem needs to be left on for 3 to 6 months to sort this out.

The modem is using tiny amounts of power. Turning the computer off - good, turning the router and or modem off = bad.
Which IMO is very unreasonable , it should only be a press of a switch on a control panel, but thanks to BT Openreach or who ever else within BT and their backwards thinking isn't possible for even ISP's as it requires a engineer to visit the cab and reset it (DLM)
Maybe if all those affected by this where to complain about it en mass , not here or other forums but to BT directly Then there maybe a small chance that they will listen to the customer for once and implement changes, well we can only hope

The other thing unless there are multiple resyncs of the modem within a short space of time DLM should not do anything adversly unless as above : Example: power modem off>on 30 times within a 2 hr window, but off and on once or twice within a 24hr period shouldn't cause DLM to ramp up interleaving and that nasty INP nonsense which give the lag factor , that coupled with lower sync & profiles

Edited by tommy45 (Wed 27-Feb-13 20:11:19)

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