Not exactly.
The sync/connection speed by definition determines how fast your line can transmit data, and the estimates are of your achievable sync. However various outside factors can reduce the maximum achievable which is why clean and impacted ranges are given.
Every time your modem or modem/router connects to the modem at the other end it will be at a (hopefully only slightly) different speed. The IP Profile is calculated from that actual line speed that time.
However, the speed
data goes down the line is a different thing altogether, and is what speed tests try to report. Think of having a simple phone conversation with someone. The speed you speak determines how quickly your listener gets what you are saying, and vice versa. But the electronic signals are basically going at the speed of light.
If your download speeds are low, that can be due to a low connection speed or congestion somewhere within the network, or other factors. Which is what your thread is about. All I was trying to explain was
the achievable figures that you got from the Further Diagnostics.
Those vary directly with the connection speed and alter every time your modem disconnects and connects. They have nothing whatsoever to do with either the speed your line should connect at, or what it is connected at, or that the data comes down the line.
They are a result, information only, telling you the expected speed test and real data speeds to be expected from the current sync speed. If the line should be connecting faster, as per the estimates, these Further Diagnostics don�t know anything about that.
A bit like a thermometer (sync and IP Profile) and a forecast of temperatures for the day (achievable on the day). On a different day with different weather (different sync speed) those figures change. The BT Wholesale estimates for your line however tell you more like the sort of climate you can expect in your part of the world as opposed to mid-Sahara (FTTP).
My broadband basic info/help site -
www.robertos.me.uk. Domains, site and mail hosting -
Tsohost.
Connection - Three 4G, tbb tests normally 35-45Mpbs down, 65Mbps off-peak, 9-24 up.
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If you never think of anything off the wall, you'll never think of anything original.