Follow the below steps to resolve this error : –
1. Open your Windows Registry Editor by typing regedit in the Window run.
2. And open same directories as opened below snapshot. And window on right, select and right -click on Display Name and choose Modify from the menu.
Under DisplayName field only this content should be “Cisco Systems VPN Adapter for 64-bit Windows” and close all this.
Once you configured this all, try to connect the Cisco VPN client .