rear surround speakers stop working, remove/replace wires works again.

[livewire]

i have a hw-ms650 sound bar and swa 900 rear speakers.

rear sound will cut out/stop, could be minutes / hours / days 

blue light remains on.

if i disconnect the wires from the speaker (as its near to me) and put them back in, it will then work once again until it decides not to.

[livewire]

no. all cables / plugs are good