ATC communications

I have this problem since using MSFS2020.
The ATC (with any aircraft and any flight plan) does not give any authorization, either verbally or in writing, but always asks to confirm the last transmission which in fact never gives. If I click on “IFR AUTHORIZATION” there is no reply and the communications with the ATC definitively cease.
Communications with the ATC are set up to be handled by me and not by the co-pilot.
Because of this I have never been able to fly ATC.
Is it possible that some settings have been made wrong?

Bonjour, j’ai aussi ce même problème…