Yandex-browser shows SSL connection errors.

If you have such an error in the Yandex browser:

This means that Yandex browser has ceased to trust the certificate issued by the Staffcop.

Due to the peculiarities Protect technology of Yandex, such a message can occur every month, even if you manually transfer the StaffCop certificate to the browser it can forget about this certificate again in a month..

Therefore, in order to get rid of the problem in advance or forget about it forever, you need to edit the configuration on the Staffcop Server in the menu “Control panel -> Computer configurations -> (your configuration)” and add an exception for interception of the Yandex-browser process.