Thanks - will try!

I started uploading my stats to mydslstats page. My username is mrjack there.

One thing that's it's highlighting is the high rate of FEC - surely that's not a good thing?

It's interesting you mention this thing. When I first went live, my sync speed was 42500kbps. However, after I rebooted the router the following day, I couldn't get more than 38000-ish. Today, when BT engineers were working, my line was down for 1 hour. Afterwards, I was syncing at almost 41000kbps, however, it's gone down now after a few reboots.

What does this trick do?

Sorry, another question - what is G.INP? Looks like it can offer substantial speed increases but I can see that it's not active on my line.

How would I get it activated?

In reply to a post by CaptainJack:

What does this trick do?

The 'trick' is to reboot in the morning when the noise floor is lower, as that can give a higher sync speed. Do NOT keep rebooting your router. as this could persuade DLM that your line is unstable and lead to a lower speed or, worse still, a capped profile being applied.

G.INP may well activate after a few days if you are on a Huawei cabinet, which may well offer you a higher sync speed. I'm not sure whether G.INP is working on ECI cabinets yet. If G.INP is activated on your line, it will resync with G.INP enabled automatically.

In reply to a post by CaptainJack:

It's interesting you mention this thing. When I first went live, my sync speed was 42500kbps. However, after I rebooted the router the following day, I couldn't get more than 38000-ish. Today, when BT engineers were working, my line was down for 1 hour. Afterwards, I was syncing at almost 41000kbps, however, it's gone down now after a few reboots.

What does this trick do?

Ugh !

You should not be doing frequent router reboots, particularly if in the first two days of connection or an engineer reset, which sounds to have happened.

Your original speed was very likely to fall within a short period from the first connection. That is common, as the error rates on the line are assessed and the speed lowered if they are too high.

In reply to a post by RobertoS:

You should not be doing frequent router reboots, particularly if in the first two days of connection or an engineer reset, which sounds to have happened.

I know, I know... Too tempting to just see if it syncs at a faster speed if I reboot.

Welp, the "trick" worked - I am getting 40700kbps sync now with attainable rate of 49000kbps. Ah, if only G.INP was enabled soon...

In reply to a post by CaptainJack:

In reply to a post by RobertoS:

You should not be doing frequent router reboots, particularly if in the first two days of connection or an engineer reset, which sounds to have happened.

I know, I know... Too tempting to just see if it syncs at a faster speed if I reboot.

Welp, the "trick" worked - I am getting 40700kbps sync now with attainable rate of 49000kbps. Ah, if only G.INP was enabled soon...

Took 29 days before G.INP kicked in here, after work on my line.

You have interleaving turned on. If the line becomes stable for a long enough period, it will get switched off.

Will G.INP never kick in until interleaving is switched off? I was under the impression that G.INP removed the need for interleaving.

As others have said - do not disconnect or reboot too often.

BY powering the modem OFF the DSLAM is sent a message to say there is a power failure and will treat the loss of connection as such. A reboot or removal of the line suggests to te DSLAM a line fault or noise. So, power off, wait, disconnect - A clean way to do it.