
Some locations (such as Japan, Australia, or New Zealand) might have different IP addresses because of using CDN. The IP address of the ESET repository server in China: 161.189.152.208

ESET Secure Authentication Provisioning Server.Download detection engine and module updates.To resolve your issue, the following hosts in each ESET component must be made accessible: Your ESET product communicates with resources on the internet over standard HTTP protocol on Port 80, or over HTTPS on Port 443. To resolve an ESET product that has a limited Direct Cloud connectivity issue, TCP/UDP port 53535 must be open.

Communication with ESET's servers has changed as of Endpoint v8.1 and communication on UDP and TCP port 53535 must be allowed on a firewall in order for Live Grid, Antispam and Web Control to work.
