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Peak time latency spikes

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

Re: Peak time latency spikes

5am rollcall

Highlighted
ClaretMatt
Grafter
Posts: 79
Registered: ‎28-08-2009

Re: Peak time latency spikes

Ping's a bit high for fibre innit?
englishrick
Grafter
Posts: 463
Registered: ‎14-02-2013

Re: Peak time latency spikes

It was about 5 when I first joined when I was getting 75+Mbps speeds.. Speeds gone down and pings gone up lol
dick:quote
Bright
Grafter
Posts: 363
Registered: ‎02-02-2013

Re: Peak time latency spikes

That's probably the effect of the DLM. It increases interleaving and FEC to stabilise the line. Which reduces throughput and increases latency  Sad
dick:quote
englishrick
Grafter
Posts: 463
Registered: ‎14-02-2013

Re: Peak time latency spikes

Line was stable at 75+Mbps speeds until I changed the cable..
dick:quote
Bright
Grafter
Posts: 363
Registered: ‎02-02-2013

Re: Peak time latency spikes

Which cable?Huh
englishrick
Grafter
Posts: 463
Registered: ‎14-02-2013

Re: Peak time latency spikes

Quote from: Bright
Which cable?Huh

I changed cable from bt socket to modem to shorter one, it was changed back a couple weeks ago but speeds and btw profile not gone back to what they were previously and plusnet profile went down also.. Maxing out connection when it's off peak...
darklight
Grafter
Posts: 142
Registered: ‎10-03-2013

Re: Peak time latency spikes

englishrick the DLM kicked in that fast  Shocked , you can't turn off your modem give it a moment and fire it back up like with the ADSL.
I did reboots of modem/router on my old ADSL now and again, i never got a bad profile, well unless i did it in say at 11pm at night.
I maybe off on hols later in the year i usually shutdown the modem and router but now i may have to rethink that.
Community Veteran
Posts: 6,340
Thanks: 92
Fixes: 4
Registered: ‎08-01-2008

Re: Peak time latency spikes

Try to avoid disconnecting the modem for a while, it can take weeks of stable connection for FTTC to raise the sync. speed if it has dropped due to instability or high errors.
Call me 'w23'
At any given moment in the universe many things happen. Coincidence is a matter of how close these events are in space, time and relationship.
Opinions expressed in forum posts are those of the poster, others may have different views.
Bjn
Grafter
Posts: 318
Thanks: 1
Registered: ‎11-11-2012

Re: Peak time latency spikes

My IP profile came back up after 4 days but drop was only 5Mb, never did find out why it went down overnight, but leave all alone and hopefully it will settle down

Yesterdays white boxs stats and another day of no problems looking better by the day that PN guys have solved the 8-10pm problem, and todays results looking good so far.
Downstream Throughput

Date 19.03.2013

Average (Mbps)
22:00 54.12
20:00 55.39
18:00 51.31
16:00 52.38
10:00 51.34
04:00 52.36


Community Veteran
Posts: 19,107
Thanks: 450
Fixes: 21
Registered: ‎31-08-2007

Re: Peak time latency spikes

Not advised to turn off/reboot the modem as englishrick knows!
darklight
Grafter
Posts: 142
Registered: ‎10-03-2013

Re: Peak time latency spikes

On ADSL it wasn't much of a big problem the DLM, is it that critical now on FTTC, 1 reboot of the modem and your speed drops.
Community Veteran
Posts: 19,107
Thanks: 450
Fixes: 21
Registered: ‎31-08-2007

Re: Peak time latency spikes

Have you not read the PM I sent you. Yes Fibre DLM is quite aggressive and is NOT like ADSL DLM!
darklight
Grafter
Posts: 142
Registered: ‎10-03-2013

Re: Peak time latency spikes

Yes just noticed it Anotherone.
Community Veteran
Posts: 6,824
Thanks: 1
Registered: ‎27-10-2012

Re: Peak time latency spikes

Speeds already off 20Mbps or so on pcl-ag04