Added
------PingInterval - added this configuration setting to specify how many seconds between the server pinging the client for client aliveness. Default value is 4 seconds which means the server sends a packet to the client every 4 seconds to make sure its still connected.
PingTimeout - add this configuration setting to specify the timeout value in seconds to wait if the server doesnt receive a ping response from the client.
See here https://www.virtualhere.com/configuration_faq for more information