You know what, i have the EXACT same setup as you and have the same issue.
So, I fetched one of those adapters from maplin, that I assume you now have (looking at your previous post) and I plug everything in and the wingman picks up the steering wheel and detects it as a DFP, but it does not calibrate and just the left green LED is flashing. I tried all the adapter sockets that fit the DFP and like you, I switched the changeable connector around and its never made a difference.
I also tried:
- rebooting with with plugged in, unplugged and different variations
- uninstalled and reinstalled wingman drivers etc.
It seems the common denominator is the adapter, (fingers crossed it hasn't buggered up the wheel). perhaps it just doesn't work with the DFP for some reason, even though it fits and is stated as delivering the correct power required by the wheel.
I'm frustrated. I can't afford another wheel at the moment with saving for a new house and what not, so might have to postpone returning to LFS. Shame, because I can't understand why logitech sell the official adapter in the US (only deliver to US territories, I checked). But not in Europe/UK.