Unable to cast Win11 (Ver.21H2) laptop to my Miracast TV

When sending my screen via 'Cast' window the laptop display indicates that my TV is available but I then get a connection error every time I try to connect....My previous Win 10 laptop connected to this TV with no problems. Anyone able to help on this????

Casting to my LG TV, the TV says no connection, I dismiss the notification then about 90 seconds later the video appears on the TV

Yes. Bronskimac I have finally connected! I selected the link at the bottom of the 'Cast' window that said find other devices - this brings up the System Display window and an option to 'Pair a new Device'.....clicking on this brings up another window which shows your TV....by clicking this button several times it eventually connected but what a shambles Win 11 has made of this process!! It appears that my TV has now been stored in my system devices so hopefully next time I connect it will be easier! Thanks for you comment.....MS need to sort this bug!