Slow speeds in the evening

[tomp]

Hi, I'm a new IDNet member, I had by BB installed on Monday.

The BT engineer said I was syncing at top-speed, and the BT speed tester on http://speedtest.btwholesale.com/ confirms this (77Mbps).

During the day I can get real-throughput speeds of 56Mbps down, and 17Mbps up from a variety of sources.

During the evenings between about 18:00 and 22:00 every day (including weekends) download speeds deteriorate to 11-16Mbps.

I have emailed Simon on support and he has asked me to send some screen shots of the BT test page, as he thinks it may be cabinet congestion.

I have tried a Dlink router (although that was no good as it blocked SIP) and now have a PPPoE link setup on my Linux PC, although both showed the same speed problems in the evening.

[tomp]

Here is a result from the BT speed test:

[Steve]

A series of Speedtests should help prove the point for cabinet congestion but I'm not sure what the options are after that. BT should be asked to improve the cabinets capacity

[tomp]

Thanks.

Do you know how many people a cabinet serves? I am surprised that its getting congested as there's not that many house in my road.

[Gary]

Even though I'm not on FTTC I have very similar looking speedtests just at lower margins, I have an engineer heading out tomorrow. Slow speeds in the morning at 7am a hour at 11am and then from 7PM till after midnight.

[tomp]

Has anyone else experienced cabinet congestion, I'm wondering if this could also be a capacity issue between the BT backhaul and IDNet

[Polchraine]

I could accept congestion being the reason for downstream dropping but what about upstream?      1.52Mbps with a 20Mbps sync?   The chance of upstream being so severely congested that it reduces to less than 10% of sync is VERY unlikely.

Which modem is installed?   And can you access the internal modem stats?   If you can,   you should be able to see what the "Attainable" rates are.

[tomp]

I was using the D-Link DHP-1565, however I am now using a PPPoE connection directly into the back of a Linux box.

Using both routers I have been both the fast day speeds and slow evening speeds.

Here is an example of an ISO file download right now:

wget http://mirror.sov.uk.goscomb.net/centos/5/isos/x86_64/CentOS-5.9-x86_64-bin-1of9.iso -O /dev/null
--2013-03-25 13:43:42--  http://mirror.sov.uk.goscomb.net/centos/5/isos/x86_64/CentOS-5.9-x86_64-bin-1of9.iso
Resolving mirror.sov.uk.goscomb.net... 2a01:348:0:36::aaaa, 77.75.110.242
Connecting to mirror.sov.uk.goscomb.net|2a01:348:0:36::aaaa|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 655726592 (625M) [application/octet-stream]
Saving to: "/dev/null"

7% [=>                                     ] 46,654,100  8.72M/s  eta 68s

[Steve]

I don't think there is any congestion between BT's back haul and IDNet,two reasons a) there would be many complaints as it's non selective and b) they make a point of non congestion on their network repeatedly and always deny it if questioned.