I had a bit of a struggle for the past weeks about intermitttent disconnection. Technicians came to the house for about 4 times. The last thing they did was change my connection password and did not fix the issue. I logged into the modem and when to WAN --> ADSL settings. I have unchecked all the DSL modulations and just ticked G.DMT
Up to this point I have been monitoring the line and it seem stable enough. Just sharing if any of you guys have this kind of problem and if it helped.