I have a powerline system which was working well then suddenly stopped. The signal will travel well between 2 or 3 or 4 outlets out of 14 then drops to next to nothing. At the time of failing nothing was being changed or added.
Is there any way to trouble shoot this? (myself or a professional)
I've isolated all but one ring at a time, unplugged every appliance, all appliances still work, all sockets work - all without success.
I've bought new adapters and they behave just like the previous ones - OK in the right sockets, no signal in others so I don't think it's a 'technical' problem.