Is Kerio Control blocking Skype?

Question

Skype

Kerio Control blocks Skype, allowed both port 80, 443 and Skype and Microsoft sites are also allowed. I changed the port in Skype itself, in general, I did everything I found in Google, but nothing helps. Tell me how to solve this if someone met with this. In Kerio, I have a rule configured to block any sites except for a couple, for example, mail, Yandex