Very weird issue. Checked log. Found X-plane can't validate self signed (!) https resource (https://clearancedelivery.x-plane.com/v1/authenticate
Founded remedy - copy existing auth.cert file from X-Plane \Resources\Certificates to %USER FOLDER%\AppData\Temp
Sooooo.... There's noting about Putin, russian hackers, it's just something going wrong inside X-plane
Support - nothing helped with this issue! Very disappointed!!!