Faced with similar issue, I searched for possible solutions online and tried different ways of overcoming the issues, which is often a hit and miss affair. Yet, for some reasons, there are still users (like myself) who are not able to use the newer Cisco An圜onnect, as it might not be supported by their existing VPN infrastructure or some other reasons.

This is because the legacy Cisco VPN-client is not supported under Windows 8 and as the client is EOL anounced, it probably will never be supported anymore. When the world moved to Windows 8, those would could not and would not move their legacy Cisco VPN software would have hit some problems while using VPN on their newer Windows 8 machines. If you are looking for the more updated Windows 10 guide for Cisco VPN client, visit this guide here instead. Updated Oct 2017 (with amazingly high success rate!)

Secure VPN Connection terminated locally by the Client., win8 win8, win8.1 win8.1, windows 8 cisco vpn windows 10 cisco vpn, windows 8 SP windows 8 SP, windows 8 windows 8, windows 8.1 windows 8.1 Reason 442: Failed to enable Virtual Adapter., secure boot secure boot, Secure VPN Connection terminated locally by the Client. Reason 440: Driver Failure., Reason 442: Failed to enable Virtual Adapter. Gleeful Gleescaper 0 Comments cisco An圜onnect cisco An圜onnect, cisco VPN cisco VPN, cisco VPN client cisco VPN client, cisco vpn client windows 10 cisco vpn client windows 8, cisco vpn client windows 8 not working cisco vpn client windows 8 not working, cisco VPN software cisco VPN software, cisco vpn windows 8.1 failed to enable virtual adapter cisco vpn windows 8.1 failed to enable virtual adapter, cisco vpn windows 8.1 reason 442 failed to enable virtual adapter cisco vpn windows 8.1 reason 442 failed to enable virtual adapter, cisco vpn windows8 cisco vpn windows8, Deterministic Network Enhancer Deterministic Network Enhancer, dne dne, dne update dne update, dneupdate for windows 8 dneupdate for windows 8, error 440 error 440, error error, failed to enable virtual adapter failed to enable virtual adapter, fix cisco vpn fix cisco vpn, fix fix, legacy support legacy support, Reason 440: Driver Failure.

Cisco anyconnect vpn client windows 8.1