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Internal labs testing (Intel i7, 100Mbps symmetric DIA) revealed:
Version 18.0 MR3 or higher is highly recommended to leverage full auto-provisioning features. Port Configurations: IPsec: UDP ports 500 and 4500 must be open. sophosconnect 2.5.0 ga ipsec and sslvpn.msi
Released in October 2025, this update (often referenced in patch management systems as SophosConnect_2.5.0_IPsec_and_SSLVPN.msi ) introduces critical fixes to enhance the reliability of the VPN connection. 4. Integration with Modern Authentication Internal labs testing (Intel i7, 100Mbps symmetric DIA)