Speed Problems / Congestion / High Latency??

[Seadog]

Hi Everyone,

I've recently come back home from a Business Trip after 3 months away and
have noticed a marked reduction in speed and a Higher Latency connection.

Tonight for example I was averaging anywhere between 6 and 12 Mb/s using
the Think Broadband and not much better on Speedtest.net using Namesco
as the Server.

Anyway, I checked my TBB BQM and noticed that my Latency shoots up at
any time between 4pm and 12 Midnight. Also this was a sudden change that
happened literally overnight when I was away on business. My internet was
not in use at all during this time, see below;

This was 31st January 2013 BQM



Then the 1st February 2013 BQM



This is the BQM this evening 17th March 2013



P.S The Yellow Peaks are me doing some Speed Tests.

As you can see packet loss at the top of the Graph and Yellow and Blue Latency increased between 4pm and midnight. I have
never seen this before on anyone's BQM. The only time I've seen Yellow and Blue Latency on my Graph is when I have been using the Internet myself on my line??? Problem is I was thousands of miles away on a Business Trip??

Anyway I contacted support and asked if they could put me on to the Traffic Priority Option. It has made no difference at all and now
my latency is at over 20ms when it used to be 13ms and the speeds are all over the place.

Anyone any ideas what is happening or seen this before, something happened between 31st Jan and the 1st February as before then in December and January no Traffic Latency was seen, very very odd..

Has IDNet or BT been messing about with my connection or just Congestion on my Cabinet or in the Exchange??

Many thanks for your help, very confused??

[Steve]

That's mine with heavy use this afternoon - goodness knows what he was up to.

The minimum latency change is probably a change in Interleave status which the DLM may change in the future if the line is stable.

The rest to me looks like local congestion but support should know the answer to that although usually it shows more variation in latency than your showing.

I suppose you've tried a reboot of router and modem

[Seadog]

That's mine with heavy use this afternoon - goodness knows what he was up to.

The minimum latency change is probably a change in Interleave status which the DLM may change in the future if the line is stable.

The rest to me looks like local congestion but support should know the answer to that.

I suppose you've tried a reboot of router and modem

Hi Steve,

Yes tried rebooting the Modem and Router over the past few weeks home, I will give support a call tomorrow and email them my BQM, hopefully they can say one way or another if it is congestion. This is really sad as up to now my line has been faultless, just occasional glitches. If this is a sign of things to come then I'll probably consider going for a cheaper service and leaving IDNet. I was hoping for a premium service which it certainly was but I bet BT have now screwed this up and little johnny down the road sharing his internet with me and downloading his films between 4pm and Midnight 

I wish IDNet had some control over my FTTC Connection but alas nobody has other than BT!!

Thanks

[lozcart]

Can you run a BT Speedtest http://speedtest.btwholesale.com and then do the further diagnostics test, this should then give you your profile for the line and we can compare this to the speeds you are obtaining.

[Seadog]

Can you run a BT Speedtest http://speedtest.btwholesale.com and then do the further diagnostics test, this should then give you your profile for the line and we can compare this to the speeds you are obtaining.

Ok Thanks,

Eventually managed to get the BT Wholesale Speedtest to work, 4th attempt and the speed test was reasonable. The Profile for my line is 77 Mbps Down and 20 Mbps Upload. The concern is that the latency is continuously up between 4pm and 12 Midnight it's as though my line profile has been changed between those times like a switch;



BT Wholesale Speedtest;



Only thing I can think of is congestion although BT Speedtests seem ok, any ideas.

Thanks

[lozcart]

It does sound like congestion, all I can suggest is to speak to support. They won't be able to get BT interested unless your speed drops below the acceptable range, I would therefore keep checking with the BT speedtest so you have some evidence to pass on to them.

The only other thing I could think of is the BT modem is playing up, do you know which version of the modem you have, I believe there was some problems with the earlier versions. However if it was at fault I guess you would see the latency spikes 24/7.

[andrue]

It does sound like congestion, all I can suggest is to speak to support. They won't be able to get BT interested unless your speed drops below the acceptable range

Actually not quite true. They managed to get BT interested and an SFI sent out for me when my connection was sitting around 30Mb/s instead of 70Mb/s. That was for a long-standing recurring fault but shows it can be done