Samsung Dex Not Working

[Dinesh006]

I Have Samsung Galaxy A9+ Tab But I Am Unable To Use Samsung Dex In External Monitor. Do Anyone Know How To Use Samsung Dex In External Monitor 

[Dinesh006]

How can I connect wireless

if I turn on Samsung Dex first it's showing smart view can't be used when Dex Is on

If I turn on smart view it's showing Dex can't be used while the smart view is on