They are two exisiting devices, which i removed from the app, and now cannot re-join the zigbee network.
It looks to be the same as this post IKEA zigbee smart plug won't rejoin
I have tried all you have suggested, as this is how i have joined them in the past.
I have just looked on the IDE under the “Events List” and tried to pair them again and its showing this
Which makes me think its got stuck somewhere, as there is no IKEA Outlet in my Devices.