I know his were from the GUI, all I wanted to demonstrate was that some figures are available and probably the overall figure it is just that most modems don't display it, get it wrong, or use 0.0. It should be there in the data and maybe his modem does actually have access to it.
As for ADSL, I wondered that but it still does not stack up and there may still be an issue. ADSL2+ is a 24/1.4 service with upstream at the low frequency end (as you know). So, I would expect to see figures of 20/1.4 in the OPs case. Or if upstream is capped at 400k up the attainable would be at least 24/1.4 rather than the 26/0.48 being seen. The 26 would show that greater than the top limit may be indicated as attainable.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
M H C
taurus excreta cerebrum vincit