Cisco client service not starting - Cisco VPN client error 56

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Cisco client , service starts and then stops immediatelly. Cisco VPN client error 56 Cicso client service cannot be started or stops immeidtalely. This could be a problem with Internet Connection Sharing (ICS). Resolve by following these steps: -Administrative Tools   - Services     - Internet Connection Sharing<- right click        - Properties          Then go to <Generel tab> and stop the service and change startup type to Manual.