Another case of SLOW in last 24 hours

[#1]

1. Best Effort Test:  -provides background information.
Download  Speed
2.68 Mbps
 	
0 Kbps	7.15 Mbps
Max Achievable Speed
 Download speedachieved during the test was - 2.68 Mbps
 For your connection, the acceptable range of speeds is 2 Mbps-7.15 Mbps.
 IP Profile for your line is - 7.85 Mbps

As with Mandoo http://community.plus.net/forum/index.php/topic,103009.0.html I am wondering if something is up with BT at the moment.
Sync etc is very good for my ~3km line too.

	Link Information
Uptime:	1 day, 1:32:12
DSL Type:	G.992.5 annex A
Bandwidth (Up/Down) [kbps/kbps]:	440 / 8,897
Data Transferred (Sent/Received) [kB/kB]:	0.00 / 0.00
Output Power (Up/Down) [dBm]:	12.5 / 0.0
Line Attenuation (Up/Down) [dB]:	25.0 / 46.0
SN Margin (Up/Down) [dB]:	20.5 / 2.5
Vendor ID (Local/Remote):	TMMB / IFTN
Loss of Framing (Local/Remote):	0 / 0
Loss of Signal (Local/Remote):	0 / 0
Loss of Power (Local/Remote):	0 / 0
Loss of Link (Remote):	0
Error Seconds (Local/Remote):	9 / 0
FEC Errors (Up/Down):	NA / 31,137,334
CRC Errors (Up/Down):	NA / 1,277
HEC Errors (Up/Down):	0 / 1,103

As with Mandoo
2. Upstream Test:  -provides background information.
Upload Speed
373 Kbps

0 Kbps 448 Kbps
Max Achievable Speed
Upload speed achieved during the test was - 373Kbps
Additional Information:
Upstream Rate IP profile on your line is - 448 Kbps

We were unable to identify any performance problem with your service at this time.
It is possible that any problem you are currently, or had previously experienced may have been caused by traffic congestion on the Internet or by the server you were accessing responding slowly.
If you continue to encounter a problem with a specific server, please contact the administrator of that server in the first instance.

We have identified that you have additional services enabled on you broadband line, please click continue to run advanced service tests.

[#2]

Hi lucerne,
I take it they were wired results rather than wireless? Are you getting this speed constantly or is it only certain times of the day?
Jojo

[#3]

Hi Jo!
Wired!
On 28/2 throughput during evening was down to <2Mb/s; yesterday 29/2 (see above) 2.68Mb/s and a few minutes ago 4.17Mb/s per BT speed tester on current sync 7929kb/s.
Below are also results from PN's My Broadband Speed

Quote

Date Download Speed Upload Speed Today 09:46 6816 kbps (852kB/s) 370 kbps (46.3kB/s) Share Tuesday 22:45 6880 kbps (860kB/s) 362 kbps (45.3kB/s) Share Tuesday 19:37 3963 kbps (495kB/s) 351 kbps (43.9kB/s) Share Tuesday 17:57 2316 kbps (290kB/s) 371 kbps (46.4kB/s) Share Tuesday 17:50 1605 kbps (201kB/s) 361 kbps (45.1kB/s) Share Tuesday 17:49 1653 kbps (207kB/s) 372 kbps (46.5kB/s) Share Tuesday 17:49 1635 kbps (204kB/s) 372 kbps (46.5kB/s) Share Tuesday 17:48 1572 kbps (197kB/s) 372 kbps (46.5kB/s) Share Tuesday 17:48 6869 kbps (859kB/s) 369 kbps (46.1kB/s) Share Tuesday 17:47 6468 kbps (809kB/s) 370 kbps (46.3kB/s) Share Tuesday 17:47 2906 kbps (363kB/s) 373 kbps (46.6kB/s) Share Tuesday 17:46 2450 kbps (306kB/s) 370 kbps (46.3kB/s) Share

At other times it appears to have been within 90% of IP Profile
hope it all may inform.

[#4]

fwiw, your FEC error count is somewhat high given your router was only up for 25 hours.  Also, the router clocked up a few CRCs.  I presume it is an interleaved connection.
Do you know what target noise margin is set on your line ?    If it is 3dB, perhaps it is too low a setting for your line.
It could be noise on the line, which would be at its worst from around 6pm onwards usually. 
Have you tried connecting router to the test socket?

[#5]

Not test socket, but I have a hard wired extension with BT on it, ring wire disconnected. Last time I used the test socket it made no difference to sync and nothing has been disturbed since, Thus I would discount any happening with the wiring to cause a problem.
Anyways the question is not with sync but throughput. Sync is no problem ~9000 for a mid morning boot, which reduces to ~8000 if there is an evening resync. So it has been since some months ago, when BTo repaired a fault in the underground street cables.
Since then target SNR appears to be 3-3.5  and attenuation 47 until a week or so back, now 46. According to PN interleaving is on.
As to noise, it must be something recent and there is nothing around I can think of. We back on to New Forest, away from anything likely. Today16.20 18.10 download MyBBS is 6816.
The error rate. if on fastpath how could there be FECs?

[#6]

Fyi, if interleaving is ON, then the router will NOT be on Fast path.

[#7]

'Twas what I meant: interleaving = FEC. fastpath = no FEC

[#8]

Quote from: lucerne

Below are also results from PN's My Broadband Speed

Have you got results from another speed tester as mybroadbandspeed is giving unreliable results at the moment.
Jojo

[#9]

Hi Jo! Sorry no, but today PIngTest Net has 6.59 Mb/s.
TBH I am wondering if the slow speed was not out of some special circumstance that evening, that has remote chance of repetition.
For my connection the only additional use in the last week has been occasional use of IPlayer via HomePlugs: I don't think it was active at the time.
I will monitor the situation. Maybe we should put this thread on hold for the time being. I shall come back if something happens again.

[#10]

Yes, do come back if necessary, just don't rely on mybroadbandspeed for the results at the moment

[#11]

Quote from: Joanne

... don't rely on mybroadbandspeed for the results at the moment

Found that out too - speedtest.net is working though. 

[#12]

I prefer to use My Broadband Speed rather than Speedtest.net but  it's so erratic at the moment that it cannot be relied upon.  Any idea when it's likely to be fixed?

[#13]

Hi coastergrotto,
We're not exactly sure of timescales at the moment, and I don't believe it's a simple fix either, but as you can imagine it's something we are eager to resolve.
Jojo