I would think you are on a 3dB sync time SNRM - during the daytime you had some spare margin, i.e. 4.3dB, but tonight the margin has reduced to 1.7dB due to noise.

Note that you get the RED traffic light showing line is underperforming now as it was on old ISP.

Sync speed is determined by the Target NM at time of sync, not by the ongoing NM. Your current Target NM was more likely 3dB, not 6dB.

In reply to a post by XRaySpeX:

Note that you get the RED traffic light showing line is underperforming now as it was on old ISP.

Sync speed is determined by the Target NM at time of sync, not by the ongoing NM. Your current Target NM was more likely 3dB, not 6dB.

Why is it in the red and how can i make in the green is the fact the line is rubbish or is it isp side, capping me.

You are not being capped.

It's not this ISP as it was much the same with old ISP.

As I keep indicating your line looks substandard but acceptable.

You could try forcing ADSL2 only mode in your router.

Have you tried from hidden test socket?

Edited by XRaySpeX (Mon 19-Aug-13 12:15:55)

just checked my router stats and its snr margin now midnight is 1.7db still holding sync.

Doubt that will last long, the line will probably drop out. With an SNR this low you risk error build up. Here's an example.

Line 1)A line with a 4.5 Mbps sync and a noise margin of 9db
Little error build up, extremely stable
Line 2)A line with a 6Mbps sync and a noise margin of 1db.
Lots of error build up, lots of potential to drop out.

With line 1, you will likely be able to stream and browse nicely. It will work as expected upto around 720p stream.

Line 2, due to error build up may struggle to stream at all, even though the sync is higher. It may also become extremely slow at loading websites and may eventually drop out and resync slower / DLM will eventually limit it to 6 / 9db noise margin so it behaves ok.

Most lines at 3db are extremely stable and not long lines without too much error build up, Your line could be one of these although I doubt it.

In reply to a post by XRaySpeX:

You are not being capped.

It's not this ISP as it was much the same with old ISP.

As I keep indicating your line looks substandard but acceptable.

You could try forcing ADSL2 only mode in your router.

Have you tried from hidden test socket?

Yes all reading from hidden socket got some more info after reboot.
i checked after rebbot what target snrm been set and its 6db but still slow upload speed however now i swapped my friends router the attenuation has lowerd to 39.3db and getting around 6mb speed, can someone tell me what the difference between max rate and data rate please as below.

Downstream Upstream

SNR Margin 6.1 21.6 db
Line Attenuation: 39.3 24.0 db
Data Rate: 7000 508 kbps
Max Rate 8400 903 kbps
crc 0 0

Data Rate is your actual speed
Max Rate is the theoretical top speed you could get if the DSLAM was not controlling it. like without any NM.