It is possible that it could be a source of your issues. I think most of us here suspect which modem and which DSLAM type.All I can say is that DLM removed INP on my line after 14 days.. so therefore at least on some ECI's its working as intended. It seems to work ok on Huaweis.. so it could be likely that there is someone on your cab with one of the duff modems.Too much speculation and not enough facts right now though. I strongly suspect that even if they have named the modem in the briefing, the SPs will have been told its confidential. There's perhaps only one ISP that might have the guts to spill, but that would depend upon what inpact they may have in getting access to future briefings. If Openreach have managed to get the manufacturer to release new f/w I agree they need to make this public.
NGA005/18 GEA-FTTC - Removal of Dynamic Line Management (DLM) issue on Long Lines23/02/2018 For InformationThis briefing is to inform all CPs that we've identified and fixed a minor DLM impact on our very long GEA-FTTC lines on a small subset of our DSLAMs.
R.VDSL2.16The modem shall support the correct reporting of Vendor ID, Version Number and Serial Number as described in section 11.2.3.6 of G.993.2. In addition non-printable ASCII characters (e.g. CR, LF, FF), delete (DEL) and comma (,) shall not be used.