Eset-upd checks for network changes. When a VPN connects, the network adapter changes. ESET triggers an update check to ensure your location-based protection (web filtering) is accurate. This is normal.
Advanced users can opt into pre-release updates to access the newest detection methods early, though this is not recommended for critical production servers. Update | ESET Endpoint Antivirus Eset-upd
You see "Update in progress - 99%" for 10+ minutes. The update has downloaded but the signature verification (cryptographic check) is failing due to system time being incorrect or SSL interception (e.g., corporate proxy). Fix: Eset-upd checks for network changes