Starting 1-Jan-2021, Remote Client VPN and Endpoint Security Client versions E81.10 and lower may stop functioning and upgrade will fail and require a patch. Endpoint Security Client users experience issues in Firewall and Advanced Threat Prevention blades.  Remote Access VPN clients fail to work with "Connectivity with the Check Point Endpoint Security service is lost" error message. CLI utility trac.exe shows "service is not started" error message for the "info" command. It can be used for both diagnostics of both standalone clients and clients for ATMs Anti-Bot and Forensics might switch to "Off" state. Firewall blade stops functioning with no indication. The VPN Log File on the windows machine (C:\Program Files (x86)\CheckPoint\Endpoint Security\Endpoint Connect\trac.log) shows:
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[TR_FIREWALL] CFirewallWrapper::InitFirewallMonitor: loading library: C:\WINDOWS\system32\FirewallMonitor.dll
[TR_FIREWALL] CFirewallWrapper::InitFirewallMonitor: lpFwMonitor_initLibrary returned true
[TR_FIREWALL] CFir…