All Bluetooth devices (elite series 2 , the standard controller and several...

The elite series one controller never had Bluetooth so you would've received exactly what you ordered if you need Bluetooth you need a new edition standard controller or an elite series 2

Because the Elite Series 1 controller came out before they introduced bluetooth in their controllers. Almost all of the standard controllers you buy today will have bluetooth like you are saying but the standard controllers that came out before and at
the same time as Elite Series 1 will not have bluetooth. So that same $50 controller you're referrring to can actually come with NO bluetooth like the $149 one depending on how long your retailing has had it sitting there.

I have the same issue:

* the plain Xbox controller (non elite) connects via bluetooth to the TV and is recognised by the Xbox cloud app on my Samsung TV. I can use it to play games using the Samsung Xbox app.

* the brand new Xbox Elite Series 2 controller connects via bluetooth to the TV and is NOT recognised by the Xbox cloud app.

I tried several attempts deleting the pairing, re-pairing. Turn off TV on the power switch. Re-installing the Xbox app on the Samsung TV.

The result is always the same:

* The Xbox Elite Series 2 controller connects successfully to the TV and is shown as Paired and Connected in the Samsung TVs feature where you add external devices.
* But the Xbox app shows the yellow ! exclamation mark and does not recognise the Elite Controller.

I’ve paired my other non Elite standard Xbox controller now vie Bluetooth and USB, which works both.

Any controller used to connect to a mobile device, needs to be Bluetooth. The Xbox series One Elite controller isn't and depending on which generation of standard controller you have, would determine if it had Bluetooth capabilities. The ones that do are
the ones that came out for the Xbox One S.

All my bluetooth drivers are up to date, the elite series 2 controller did not come with a wireless adapter