Slow speeds - really getting annoying now
Your SNR is very high which suggests you have been having problems with your line. What does the BT speed tester say for your current IP Profile?
Firstly, in view of the latest service status email, if your speeds are really dire I'd suggest a disconnect reconnect to try different gateways.
The way to get your target SNRM reduced is to stay connected with minimal errors and no unexpected disconnections for a few weeks (around 4 is I think normal).
The way to get your target SNRM reduced is to stay connected with minimal errors and no unexpected disconnections for a few weeks (around 4 is I think normal).
Thanks for taking the time to reply Jelv. The problem I have is that my router only seems to stay connected for a few days and then reconnects at a different synch speed. I`m not sure why this is?
You've got a problem! The BT systems are doing what they are supposed to do.
When your router first connects to the exchange it negotiates the fastest speed it can whilst keeping the noise margin at (or above) the target (as sync speeds increase the noise margin reduces). At night there tends to be more background noise (radio waves transmit better and extra electrical equipment comes on which might generate noise) so the margin (the difference between the background noise and the ADSL signal reduces). Normally this variation is up to 3db, so with the default 6db target the margin stays above 3. If however the margin drops near to zero the router and the exchange can't hear each other due to the background noise and they drop the connection to resync at a lower speed to give a higher margin. If this happens several times BT increase the target so that it can cope with a larger drop in the margin without dropping the line.
Firstly I'd suggest you don't at the moment sync during the day to get the faster speed. I'd suggest you need to try to get it to sync around the middle of the range to give you reasonable speeds and hope that it then hangs on during the evening without dropping. If you can avoid the drops things will move in the right direction.
What you need to do is to try to find out what causes the noise margin to drop. This could well be due to some other piece of electrical equipment turning on. For example Christmas tree lights are an absolute classic*. If RouterStats or RouterStats lite (http://www.vwlowen.co.uk/internet/files.htm) will run for your router it will give you a graph of the noise margin which may help identify the cause.
[me=jelv]wins the prize for being the first to post the tree lights suggestion in the Christmas 2009 season![/me]
When your router first connects to the exchange it negotiates the fastest speed it can whilst keeping the noise margin at (or above) the target (as sync speeds increase the noise margin reduces). At night there tends to be more background noise (radio waves transmit better and extra electrical equipment comes on which might generate noise) so the margin (the difference between the background noise and the ADSL signal reduces). Normally this variation is up to 3db, so with the default 6db target the margin stays above 3. If however the margin drops near to zero the router and the exchange can't hear each other due to the background noise and they drop the connection to resync at a lower speed to give a higher margin. If this happens several times BT increase the target so that it can cope with a larger drop in the margin without dropping the line.
Firstly I'd suggest you don't at the moment sync during the day to get the faster speed. I'd suggest you need to try to get it to sync around the middle of the range to give you reasonable speeds and hope that it then hangs on during the evening without dropping. If you can avoid the drops things will move in the right direction.
What you need to do is to try to find out what causes the noise margin to drop. This could well be due to some other piece of electrical equipment turning on. For example Christmas tree lights are an absolute classic*. If RouterStats or RouterStats lite (http://www.vwlowen.co.uk/internet/files.htm) will run for your router it will give you a graph of the noise margin which may help identify the cause.
[me=jelv]wins the prize for being the first to post the tree lights suggestion in the Christmas 2009 season![/me]