My parents has complaint about their FTTC has disconnected every days lately. They have no problem before Openreach has changed DLM on their line with 3dB SNR target.
I have a look at their plusnet hub one router with helpdesk and can see their line at 2.5dB downstream and 6.1dB upstream and check the logs as I can see everydays of DLM made change at their downstream SNR from 3.1dB to 4dB, 5dB and back to 3dB and so on.
I think the only way to stable their line is to request Plusnet to ask Openreach to DISABLED Target SNR 3dB and locked at 6dB default to keep their line stable.
Can Openreach do this or can't do it, up to DLM to do this way? My parents are getting fed up with it and want to stay stable as it was. Their line was stable from 2014 until few months ago when DLM kicked in 3dB and caused more problems.