I\\\'ve added a wall light and wired it up to the existing 2 way switch. Now when the wall lamp is lit the original ceiling lamp goes out and vice-versa. I connected the wires from the lamp to L1 & L2 on the switch. The blue & yellow wires are connected the other way round on the other 2 way switch, could this be the problem. Any ideas?
Switch 1 - C=Red, L1=Blue, L2=Yellow.
Switch 2 - C=Red, L1=Yellow, L2=Blue.(Cable1)
L1=Blue, L2=Brown.(Cable2)
I connected the Red & Black from the new twin & earth cable to L1 & L2 as with cable 2.
The wiring from the existing ceiling lamp in brown & Blue.
Switch 1 - C=Red, L1=Blue, L2=Yellow.
Switch 2 - C=Red, L1=Yellow, L2=Blue.(Cable1)
L1=Blue, L2=Brown.(Cable2)
I connected the Red & Black from the new twin & earth cable to L1 & L2 as with cable 2.
The wiring from the existing ceiling lamp in brown & Blue.