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Peak time latency spikes

englishrick
Grafter
Posts: 463
Registered: ‎14-02-2013

Re: Peak time latency spikes

yep, download speed halved...
KevinA
Rising Star
Posts: 159
Fixes: 2
Registered: ‎07-02-2013

Re: Peak time latency spikes

Just a quick example of slow downs over the past 5days during peak times, things have defiantly improved from the sub 10Mb speeds but there is still a slow down of over 10Mb at busy times, last nights being the most obvious from the charts.
Fri15th

Sat16th

Sun17th

Mon18th

Tue19th
appears to be most obvious peak time slowdown..
Bjn
Grafter
Posts: 318
Thanks: 1
Registered: ‎11-11-2012

Re: Peak time latency spikes

Quote from: darklight
1 reboot of the modem and your speed drops.

A bit of a drastic statement, I've rebooted my modem without loss of speed or the IP changing, just don't do it very quickly or in repeated reboots in quick succession. The only time my IP dropped was once over night which was probably related to restarts due to maintenance by BT / PN or both. I've rebooted modem a number of times with no problems but never done a quick restart always left at least 15- 20 minutes before restarting and never reboots in quick succession.
Ever thought that for new people that if the modem on it's first reboot which could be a few days or even along time then that's the first time it's had time for the DSLM to adjust to the lines best level. Some posts here have noticed drops and have not been connected to PN  for a month, that's the time I'd expect the line to settle in and the DSLM to adjust and stabilise. Everyone gets fast speeds at the first connection to Fibre but the DSLM  can kick-in and they never get the speed back as the line is not stable at the initial fast speed and they start shouting I can get faster speeds and want it back. But sometimes the DSLM can lower and return due to a blip in the lines stability for a short time and return to a higher level after a period of time if left alone and you don't keep rebooting the modem to try and get the speed back.
An example my speed estimate was 55Mb, on connection and for the first week was around 61Mb but then dropped to 54,5Mb where it's stopped for 3 months, so I got what I expected when signing up for fibre. Then for some reason three weeks ago my IP dropped to 50.5Mb but leaving all alone returned 4 days later to 54.5Mb where it's been ever since.
After all what's the use of a 75Mb unstable line against a stable 65Mb line would you really notice the difference unless you did multi speed tests often. Speeds not everything line stability is.
the above is putting aside any speed problems due the the PN problem of the last few weeks between 8-10pm
Bjn
Grafter
Posts: 318
Thanks: 1
Registered: ‎11-11-2012

Re: Peak time latency spikes

@kevinandrews
You are getting exactly what I was until the 15/16th when things have improved and been OK since then

everything OK on plc-ag08  atm


Bright
Grafter
Posts: 363
Registered: ‎02-02-2013

Re: Peak time latency spikes

Everything OK (as usual for me) on gateway ptn-ag04
Anotherone
Champion
Posts: 19,107
Thanks: 457
Fixes: 21
Registered: ‎31-08-2007

Re: Peak time latency spikes

20CN, back on pcl-ag03. Speedtests and pings tests all normal at present. A few minutes Live Stream BBC1 seemed fine.
englishrick
Grafter
Posts: 463
Registered: ‎14-02-2013

Re: Peak time latency spikes

@Bjn...... Nice little dig !!!!!!
Finguz
Grafter
Posts: 397
Thanks: 1
Registered: ‎21-02-2013

Re: Peak time latency spikes

Been fine since the profile reset, and now we're back to this...
ptw-ag04



pcl-ag07


pcl-ag06


ptn-ag04



pcl-ag04


ptn-ag04



pcl-ag08



ptw-ag02



pcl-ag04



Bright
Grafter
Posts: 363
Registered: ‎02-02-2013

Re: Peak time latency spikes

Yikes!!!  Cry
Anotherone
Champion
Posts: 19,107
Thanks: 457
Fixes: 21
Registered: ‎31-08-2007

Re: Peak time latency spikes

What's your BT IP profile at the moment Finguz?
Quote from: Kelly
We believe we've solved the problem which was causing the 70Mbps fibre lines turning into 3Mbps lines at peak.

Looks as though it might be broken again  Huh
Finguz
Grafter
Posts: 397
Thanks: 1
Registered: ‎21-02-2013

Re: Peak time latency spikes

BT profile @ 72.58, test 3 still refuses to run/work/be of any use whatsoever.  We were downloading at linespeed 45 minutes ago, then.....
I guess I'll open another ticket and twiddle my thumbs
Bjn
Grafter
Posts: 318
Thanks: 1
Registered: ‎11-11-2012

Re: Peak time latency spikes

No problems again tonight for 5th day running everything working at full speed between 8-10pm
@finguz
sorry to see your having very bad speed problem I hope the PN guys can help you very soon
Kelly
Hero
Posts: 5,497
Thanks: 373
Fixes: 9
Registered: ‎04-04-2007

Re: Peak time latency spikes

I think Finguz had a fault last time we looked at it?  Not sure if that was resolved?  We'll check tomorrow again!
Kelly Dorset
Ex-Broadband Service Manager
AndyH
Grafter
Posts: 6,824
Thanks: 1
Registered: ‎27-10-2012

Re: Peak time latency spikes

@ Finguz
To get the test 3 to work, you need to run the normal BT test and go through the further diagnostics page, it will say there are problems with you line and press continue to run further tests. It then gives you the TAP3 login details, you login, press continue then the test works.
Finguz
Grafter
Posts: 397
Thanks: 1
Registered: ‎21-02-2013

Re: Peak time latency spikes

Thanks Bjn but it's just one of those things. The line is perfect all day, it's just in the evening when we would like to use it most that these problems occur. We'll put up with it a while longer and then we'll be looking to move elsewhere as it's not fit for purpose if this is going to be regular.
If I could hop and fix it, it wouldn't be so bad, but hopping is a waste of time  Roll_eyes