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Standard User Skilty
(regular) Sat 17-Oct-15 21:52:51
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Exchange Congestion?


[link to this post]
 
My family have been complaining about slow speeds for a while in the evenings so I thought I would run a speed test, this is what I got:

TB Speed Test

Is this congestion at the exchange? I don't see this on my SamKnows report but typically it samples 3-4 times a day and never it seems at peak times!

Cheers

Skilty

plusnet Unlimited Fibre (FTTC) > Sky Fibre Pro Unlimited. 15ms Ping, Sync ~ 68.93/18.83Mbps
Administrator MrSaffron
(staff) Sat 17-Oct-15 22:05:20
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Re: Exchange Congestion?


[re: Skilty] [link to this post]
 
If at non congestion times the two lines merge into one then yes probably congestion

The author of the above post is a thinkbroadband staff member. It may not constitute an official statement on behalf of thinkbroadband.
Standard User Skilty
(regular) Sat 17-Oct-15 22:26:28
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Re: Exchange Congestion?


[re: MrSaffron] [link to this post]
 
Generally I see a nice graph and the internet is pretty snappy until about 3-4 weeks ago.

As I have the line rental increase I can dip out of the contract with Sky for LR, calls and fibre.

Just been looking at Pulse8, as I work from home and my wife is a professional blogger does anybody have any comments on their service?

As Sky will be £17.40 + £8 + £30 = £55.40 a month Pulse8 come out pretty cheap in comparison (I am on Sky Fibre Pro).

Assuming as my exchange has TalkTalk LLU Pulse8 will put me on TTB...

plusnet Unlimited Fibre (FTTC) > Sky Fibre Pro Unlimited. 15ms Ping, Sync ~ 68.93/18.83Mbps


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Standard User Chrysalis
(legend) Sun 18-Oct-15 08:38:30
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Re: Exchange Congestion?


[re: Skilty] [link to this post]
 
to clarify are you saying your samknows graphs are showing full speed at peak?

if yes it would suggest the exchange backhaul link is ok.

Also what have sky told you when you asked if there is congestion on their backhaul?

Sky Fibre Pro BQM - IPv4
Standard User Skilty
(regular) Sun 18-Oct-15 10:02:31
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Re: Exchange Congestion?


[re: Chrysalis] [link to this post]
 
The majority of data points do say 64mb, but there are data points dropping down to the low 40s.

It depends on when the samples are taken...

My next port of call is Sky tomorrow morning to ask them about it.

Of course I then have to connect the SR102 as I have BT OR plus my Asus AC87U at the moment.

plusnet Unlimited Fibre (FTTC) > Sky Fibre Pro Unlimited. 15ms Ping, Sync ~ 68.93/18.83Mbps
Standard User Skilty
(regular) Mon 19-Oct-15 23:07:13
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Re: Exchange Congestion?


[re: Chrysalis] [link to this post]
 
Spoke to Sky and the guy said he couldn't see any contention at the exchange.

I did a tracert to www.bbc.co.uk:

Tracing route to www.bbc.net.uk [212.58.246.92]
over a maximum of 30 hops:

1 <1 ms <1 ms <1 ms ASUS-RT-AC87U [192.168.2.1]
2 <1 ms <1 ms <1 ms 192.168.1.1
3 3340 ms 2851 ms 3030 ms 97e7fe38.skybroadband.com [151.231.254.56]
4 11 ms 12 ms 12 ms 02780a30.bb.sky.com [2.120.10.48]
5 11 ms 10 ms 10 ms ntl-ge2-9.prt0.rbsov.bbc.co.uk [212.58.238.189]

6 * * * Request timed out.
7 12 ms 11 ms 11 ms ae0.er01.cwwtf.bbc.co.uk [132.185.254.93]
8 12 ms 11 ms 12 ms 132.185.255.165
9 12 ms 11 ms 11 ms bbc-vip013.cwwtf.bbc.co.uk [212.58.246.92]

Trace complete.

And having switched back to the SR102 can see these stats:

System Up Time: 29:55:41

Port Status TxPkts RxPkts Collision Pkts Tx b/s Rx b/s Up Time
WAN MER 18766630 36434122 0 52146 1167116 29:54:57
LAN Up 36032405 18654266 0 1589510 83364 29:55:41
WLAN Disable 0 0 0 0 0 00:00:00


Broadband Link Downstream Upstream
Connection Speed 67214 kbps 20000 kbps
Line Attenuation 14.6 dB 0.0 dB
Noise Margin 6.4 dB 9.9 dB

So now a bit lost as I checked the router and I am the only active connection!

plusnet Unlimited Fibre (FTTC) > Sky Fibre Pro Unlimited. 15ms Ping, Sync ~ 68.93/18.83Mbps
Administrator MrSaffron
(staff) Tue 20-Oct-15 05:44:35
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Re: Exchange Congestion?


[re: Skilty] [link to this post]
 
Which exchange and do you know any one else on a Sky connection, to see if they see similar in the evenings

The author of the above post is a thinkbroadband staff member. It may not constitute an official statement on behalf of thinkbroadband.
Standard User Skilty
(regular) Tue 20-Oct-15 06:13:51
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Re: Exchange Congestion?


[re: MrSaffron] [link to this post]
 
It's WWBRIX.

Unfortunately I don't, they all moved to BT when they had the seemingly cheap offers!

This is what I would expect to see and what I saw on Sunday afternoon:

http://www.thinkbroadband.com/speedtest/button/14451...

This is what I am seeing this morning, which is better:

http://www.thinkbroadband.com/speedtest/button/14453...

plusnet Unlimited Fibre (FTTC) > Sky Fibre Pro Unlimited. 15ms Ping, Sync ~ 68.93/18.83Mbps

Edited by Skilty (Tue 20-Oct-15 08:13:32)

Standard User Skilty
(regular) Thu 22-Oct-15 23:48:27
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Re: Exchange Congestion?


[re: Chrysalis] [link to this post]
 
Spoken to Sky and they have said there is no congestion at the exchange. But the speedtest on TBB show otherwise. Took a few today and they tend to show a pattern and that there is slow down in the evening which slowly recovers:

11:03
12:54
16:26
20:18
21:20
22:28
23:16
23:39
23:47

Sky are sending out a new router to see if that fixes the issue. The only other thing I can think of is congestion at the DSLAM in the cab?

plusnet Unlimited Fibre (FTTC) > Sky Fibre Pro Unlimited. 15ms Ping, Sync ~ 68.93/18.83Mbps
Standard User simon194
(experienced) Fri 23-Oct-15 08:14:25
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Re: Exchange Congestion?


[re: Skilty] [link to this post]
 
The slowdown isn't really significant enough for Sky to take any action.

At my exchange Sky finally admitted there was a congestion problem when fibre customers were getting sub-1 Mbps download speeds at peak times. It then took 3 weeks to sort due to various miscommunications between Sky, Alcatel-Lucent and Openreach.
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