@Solla-topee Thanks for your reply, but I have tried all those things already several times to no effect! When I try to pair using the pair buttons, the on/off light on the new adapter doesn't blink....

I have just purchased a Powerline Extender (model TL-WPA4220) to use with an existing Powerline network, but can't get it to pair - the powerline LED doesn't come on. I have tried various ways of...