What is DLM and when does it happen?

[nidave]

Have been with 02 nearly a week now and we have disconnects about twice a day (once in the morning and once at about 8pm) have to reset the router for it to work again. What impact will this make on the training. (I think there may be a fault on the line - am currently using a wired connection into the test socket)

My noise margin swings quite a bit when I check before and after. (Will try and post stats once I get home)

[Saturday]

Yes, sounds like a line problem.

The likely effect is that O2/DLM will give you an extra high noise margin which will give you a lower sync speed. If your line is noisy then you'll already be getting a low sync speed so it's double whammy.