Connection to other PC impossible

Since version 2.0 I cannot connect to other PC on my network. I always see this:

and then immagine


If you upgrade your local/remote computers to our latest version from, does it solve it?

Please go through these steps

I’m running 2.0.80 on all PC. With 1.x it was working but it stopped since first installation of 2.x release

EDIT: on PC not allowing connection it was running 2.0.78. Upgrading to 2.0.80 it made it works. After a while… firewall need some minutes to restart and become active.