P: Tethering support for Nikon D5500 not recognized

Lightroom 2015.4 now supports tethering for the Nikon D5500.
My Nikon D5500 is not recognised when trying to tether !!!
I received an email from Nikon today announcing a firmware update for my D5500, which i did.
I’m not sure if the firmware update is preventing the camera from connecting.