Now then, here's a thing: I'm off work today with sickness but I'm able to gently potter about - I've borrowed a Black Box LAN Solution Network Tester to check out my wiring so I set about having a tinker.
Firstly, the cabling (it's radial, not daisychain) round the house is brand new and Cat6 spec, the outlet plates in the rooms are Cat6 and the patch strip under the stairs is Cat6 - in short, everything is Cat6 spec.
OK then, upon connecting the Black Box to the patch strip under the stairs via a short cable - with the remote little numbered boxes at the far end, in the rooms - I have the same fault diagnosis coming up on the Black Box on all the circuits
. The number of the remote box is correctly displayed in each case, all the conductors are intact, but pairs 3&6 (white/orange & orange) are coming up as 'miswired', as are pairs 4&5 (blue & white/blue). I'm taking this to mean that 3&6 are crosswired with each other, as are 4&5. BUT...I have found a little back-to-back connector in the kit which says 'Cat6 coupler'. Ah, maybe Cat6 is a different wiring protocol methinks! So I put the coupler in-circuit and hey presto, all the numbers match up now, 1to1, 2to2, 3to3, 4to4, 5to5, 6to6 etc, but the screen still displays 'Miswire'.
What the hell is going on! Eddie, you are Mr. Network
...WTF! Or indeed, anyone else who may be able to shed light on this!
it appears there are TWO Cat6 protocols (or maybe this applies to Cat5 as well?!), A and B. The marking on the room outlets is Type B. So I wired up these outlets accordingly. When I wired up the patchstrip under the stairs, I respected the same protocol.