slow internet speeds

[stirling]

i seem to be running very slow last few days, a few weeks ago my download speeds was 7100 kbps  now its dropped to just over 2400 has anyone any ideas?

[Simon]

Hi Stirling,

Can you post your router stats and BT Speedtester results for when the techies come along?  Also, do you happen to know what your 21CN WBC status is?  You can check it out on Sam Knows. 

[stirling]

Test1 comprises of Best Effort Test:  -provides background information.
    Your DSL connection rate: 2944 kbps(DOWN-STREAM),  448 kbps(UP-STREAM)
    IP profile for your line is - 2500 kbps
    Actual IP throughput achieved during the test was - 2072 kbps  that was bt speed test at 9 30pm

   
System Up Time 31:32:53
Port Status TxPkts RxPkts Collisions Tx B/s Rx B/s Up Time
WAN PPPoA 240230 315477 0 268 2548 31:32:09
LAN 10M/100M 294879 240647 0 2442 334 31:32:49
WLAN 11M/54M 25093 11172 0 180 12 31:32:39


ADSL Link Downstream Upstream
Connection Speed 2944 kbps 448 kbps
Line Attenuation 13 db 3 db
Noise Margin 14 db 9 db

sorry but i havent a clue what is meant by the 21cn wbc is

[stirling]

i forgot to mention i have had this kind of issue previously and recently bt sent an engineer to do a lift and shift at the exchange and this resolved the problem fopr about 3 weeks

[Rik]

WBC is the new broadband service which BT is switching to. Although it's related to 21CN, it's happening at different, generally earlier, times. In the few months before it goes live at an exchange, there will be engineering work going on which might cause the sort of issues you're experiencing.

Clearly, atm, your sync speed means you are getting a 2500 profile and throughput to match. For that line attenuation, that is very low. On top of that, it looks to me as if your target noise margin has been increased to 15db, which trims ~2000k off your sync speed. Even with that, you should be getting twice the speed you are.

You need to talk to support again, there's clearly something physically wrong with the line and, provided you've eliminated everything your side of the master socket, then BT need to sort it out. I'm guessing that your speed is well below your FTR (fault threshold rate), set at the end of the training period, so there should be no wriggle room for BT.

[Sebby]

As Rik says really. If you were getting throughput in excess of 7Mb, you must have had full sync at one point. Now you're only sync'd at 2944k (albeit with a 15dB margin to attempt to improve stability).

It's worth trying another router and filter if you've got, and also the test socket if you have an NTE5 master socket. If there's no change, let IDNet know and they'll arrange for an engineer to visit.

[stirling]

  this was done at a quiet time, 17.20 on a sunday afternoon, cant imagine bt doing anything with the lines at this time so i guess i better be in touch with help first thing tomorrow, how i love my internet when it works.........................

[Rik]

You profile is the limiting factor, Stirling. That takes 3-5 days to increase generally, providing you are not losing sync. Have you checked the router logs for and drops?

[Sebby]

  this was done at a quiet time, 17.20 on a sunday afternoon, cant imagine bt doing anything with the lines at this time so i guess i better be in touch with help first thing tomorrow, how i love my internet when it works.........................

The time of day is irrelevant. The speed is not the issue per se; it's the sync, which is down to your line - obviously this is limiting the profile and thus the speed.

[stirling]

ill be in touch with support first thing and thanks for everyones help

[stirling]

Test1 comprises of Best Effort Test:  -provides background information.
    Your DSL connection rate: 2944 kbps(DOWN-STREAM),  448 kbps(UP-STREAM)
    IP profile for your line is - 2500 kbps
    Actual IP throughput achieved during the test was - 2320 kbps, carried bt test out at 7 30 am so at least its consistent.

[Rik]

Basically you're getting the right throughput for your current connection speed and profile, Stirling. You need to resolve that sync speed problem.

[Sebby]

What Rik said. Until the sync is sorted, you can't go any faster.

[stirling]

after contacting support i was told the line sync should recover in next two days im afraid its still bad so ill have to get back onto them


  

[Rik]

Have you forced a re-sync?

[stirling]

havent done anythin as support said lookin at line as it stands now it will recover in next few days as long as no further low sync events, its all double dutch to me but i put myself in the expert hands Rik

[Rik]

They seem, in that case, to be talking about your profile. Sync speeds only change when you re-sync, so you would have been told to do that. Profile changes, otoh, happen overnight in most cases, and are automatic.

Do a BT speed test in the morning if you can.

[stirling]

kk rik will do and ill post results as well

[Sebby]

Let us know.

[stirling]

Test1 comprises of Best Effort Test:  -provides background information.
    Your DSL connection rate: 2944 kbps(DOWN-STREAM),  448 kbps(UP-STREAM)
    IP profile for your line is - 2500 kbps
    Actual IP throughput achieved during the test was - 2276 kbps
as you can see no change really, this was at 5 45 am thursday morning

[Lance]

You are not going to see any improvement until your sync rises higher than the current 2944. It may be worth unplugging the router at the wall, waiting a minute and then plugging it back in (effectively forcing a resync). If you then have a look in the router stats you will hopefully see it has increased.

[stirling]

Test1 comprises of Best Effort Test:  -provides background information.
    Your DSL connection rate: 8128 kbps(DOWN-STREAM),  448 kbps(UP-STREAM)
    IP profile for your line is - 2500 kbps
    Actual IP throughput achieved during the test was - 2337 kbps




rebooted router an hour ago so will watch it carefully and thanks lance

[Rik]

It's just a waiting game now. The profile can take anything up to 5 days to recover, but if the line is stable, it will.

[stirling]

this is why i love idnet so much, within minutes of posting theres freindly people there to help, now lemme find some more jokes for ya

[Rik]

We're waiting.