This is UK only.
I was getting a crappy ADSL connection.
Until I came across this website - http://www.dslzoneuk.net/socket.php
So I started hax0ring away the BT socket and cables, leaving only wire 2 and 5.
Router stats:
Before - Down Speed: 2656000
After - Down Speed: 3968000
Much better! I’m now waiting for BT to update the MSR and BRAS profiles as it’s currently set to 2Mbps or so.
Hopefully once updated, that will give me an speed increase!
Check yours… but don’t blame me if you messed up the BT socket! Research, research, confirm twice before doing it.
Best of luck!
