Syncs on this line mode are around 4.2mbps down and 0.9mbps up.
But since yesterday it has been negotiating with REadsl and the upload sync has been suffering due to this with syncs of 2.7mbps down and 0.1mbps up.
If i manually change the line mode to adsl2 only then the upload sync is better with a sync of 2.7mbps down and 0.7mbps up.
I think this is due to cabinetisation, I currently have a fault logged with my isp to address this issue but I'm just wondering how my modem chooses its line mode when its set to auto, is it dependent on line attenuation or other factors?
Attenuation has increased from 45db to around 50 for ds and 27db to 31 for us.