I've downloaded the package you suggest and have it running now, for the past hour, the router stats package has been solid on 16.4 noise margin and 3744 kbps connection speed.
I have also switched on / off the livebox which is now reporting the following, i.e. the attainable download rate & downstream rate have gone back up, but I believe the IP Profile is still at 2000kbps as my download speeds are still at about 1.8mbps via any speed test.
I have also scanned through the other links you suggested and at first glance do not believe there is anything wrong that I can see. I tried the quiet test and to my ears all sounds OK. I do not have any extension cabling with the livebox plugged directly into the master BT socket, albeit not the test one inside.
Best not to do that while you have this problem. BT's DLM equipment may see that as an unstable line and reduce your IP Profile even further. If you do switch it off then do not switch it back on again immediately, wait a minute or two then switch back on.
If the SNRM on Routerstats drops quickly (over 2 or 3 plots) to say 10dB then this could also trigger the DLM to reduce the IP Profile.
IF the SNRM stays steady for 2 or 3 days then the DLM will start to increase the IP Profile again.
Re. the stats package, both lines on the graph are still rock steady.
When does the livebox attempt a new "handshake" with the BT equipment, every few minutes or only when the livebox is turned on / off? In other words what is it that triggers the update within the livebox of the attainable rate etc?
When I first noticed the slow downloads, at the same time the livebox would quite frequently disconnect from the Internet and start flashing its lights. The ONLY way it would work again is after it was switched on / off - sometimes I would leave it for hours to see if it would reconnect by itself, but it never would....
When I first noticed the slow downloads, at the same time the livebox would quite frequently disconnect from the Internet and start flashing its lights. The ONLY way it would work again is after it was switched on / off - sometimes I would leave it for hours to see if it would reconnect by itself, but it never would....
Yes, it's relevant.
A disconnnection from the internet would signal to BT's DLM that the line is unstable and it would respond by reducing the IP Profile. This is what Routerstats will show up, if it's a disconnect because of SNRM or something else. The something else could be a broken livebox if the SNRM hasn't dropped to cause it.
When does the livebox attempt a new "handshake" with the BT equipment, every few minutes or only when the livebox is turned on / off? In other words what is it that triggers the update within the livebox of the attainable rate etc?
The only time the "handshake" occurs is when the router loses sync. with the DSLAM at the exchange. If everything is within the parameters then nothing happens at the DSLAM or DLM. But if the noise is louder than the signal then the DSLAM cannot hear and won't re-sync (continual flashing lights).
So providing the router is synced with the exchange there's no check by the DLM but as soon as a problem starts then the DLM wakes up and begins trying to stabilise the connection, by increasing SNRM and reducing the IP Profile and sync speed.
At around 9pm, routerstats showed a drop to 0 for the noise margin & an associated connection drop for approx. 45 seconds. When it came back the connection speed graphed had reduced from 3744 to 2560 and about 12 minutes later the noise margin went to 16.1 & then 17.2
The rates within the livebox sys info had also dropped back again.
At this point I decided to connect my netgear DG834 to see what it could obtain and I also started suspecting the livebox! - I know this might confuse the BT equipment, but on balance I thought worth a try.
For the past 40 minutes, the graphed Netgear connection speed has been solid at 4256kbps, (higher then anything graphed on the livebox); and the noise margin has been fluctuating between 11 & 15, (when monitoring the livebox noise margin, this did not fluctuate when it was working, but changed upwards to 17.2 as mentioned above)
After the hiccup at 9pm, I ran another speedtester.BT.com and as expected the IP Profile was still at 2000kbps but it also seems to have noted the upstream DSL connection rate from the livebox at 256kbps, (down from 448kbps), no doubt due to this latest 9pm issue.
I have no idea what really happened at around 9, but am I right in thinking it could well be an issue with the livebox itself?
When I started the stats: (IP profile 2000kbps)
Noise Margin= 16.4, Sync Speed= 3744
& this was maintained right up to the hiccup / connection loss at 9pm
Just after 45 second connection loss:
Noise Margin= 15.2, Sync Speed= 2560
About 12 minutes later:
Noise Margin= 16.1, Sync Speed= 2560
Two minutes later:
Noise Margin= 17.2, Sync Speed= 2560
About 10 minutes later after change to Netgear:
Noise Margin= 15, Sync Speed= 4256
As at 2am (approx. 4.5 hrs since switch to Netgear)
Noise Margin variable between 11 & 15
Sync Speed hasn't changed & steady at 4256
Firstly I would like to say that Orange have been very helpful & attentive throughout this process calling me on a daily basis for an update and to agree the next steps - I have only just spoken with them again to discuss the latest.
The connection has now been solid at a downstream connection speed of 4256kbps and an upstream of 448kbps since 9pm last night, (approx. 16 hours). Currently I am limited by the BT IP Profile "stuck" at 2000kbps but at least it hasn't declined again, and I am still experiencing a download speed of approx. 1.9mbps
Interestingly, whereas the Noise Margin had been fluctuating between 11 & 15 since 9pm last night, about 1 hour ago it went solid at 11db with two slight blips at 10db
I am hoping that the IP Profile can soon be reset again to then establish a higher spped stable connection with the new router - fingers crossed...
I think you've proved it is a duff Livebox. If the IP Profile doesn't increase by Sunday night then it will need manual intervention (Orange must contact BTw to do this).
Until the Profile increases you won't see any improvement in throughput speed but at least the router has stayed synced at a good level since last night. At 4256kbps your IP Profile will be 3500kbps which should give a throughput speed of around 3000kbps.
"Borednow" - Thanks for the continued interest, help & encouragement...
The Netgear has now been up for approx. 23 hours and still shows a connection speed of 4256kbps downstream & 448kbps upstream (this has also just been confirmed by www.speedtester.BT.com)
The noise margin seems to have settled to a consistent 12db so hopefully that is also on the right track.
As you indicate, the IP Profile is still set to 2000kbps but I'll keep everything crossed for Sunday...
Download speed achieved during the test was - 3228 Kbps
For your connection, the acceptable range of speeds is 600-7150 Kbps.
Additional Information:
Your DSL Connection Rate :4416 Kbps(DOWN-STREAM), 448 Kbps(UP-STREAM)
IP Profile for your line is - 3500 Kbps
Hopefully this will now remain stable at this speed...
But as I said earlier, with your attenuation your router should be synching nearer 7000kbps.
I would ask Orange to replace the Livebox (you have proved it to be faulty) because a new one would probably sync correctly.
If you're brave, you could re-connect the existing Livebox just to see if it will sync correctly. You could always revert to the Netgear knowing it will work.
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