Updates, registration and the template library need your server to reach ThemePunch’s servers. If a firewall blocks outgoing connections, ask your host to allow them.
The new front end of Essential Grid 4 uses what browsers from 2023 on can do: Chrome and Edge 111 or later, Firefox 115 or later, Safari 16.4 or later (iOS 16.4 or later). In older browsers a grid still shows all its items, with working links, without filters or motion.