MSS: (TcpMaxConnectResponseRetransmissions) SYN-ACK retransmissions when a connection request is not acknowledged

MSS: (TcpMaxConnectResponseRetransmissions) SYN-ACK retransmissions when a connection request is not acknowledged


Supported on: At least Windows Vista
TcpMaxConnectResponseRetransmissions


  1. No retransmission, half-open connections dropped after 3 seconds
    Registry HiveHKEY_LOCAL_MACHINE
    Registry PathSystem\CurrentControlSet\Services\Tcpip\Parameters
    Value NameTcpMaxConnectResponseRetransmissions
    Value TypeREG_DWORD
    Value0
  2. 3 seconds, half-open connections dropped after 9 seconds
    Registry HiveHKEY_LOCAL_MACHINE
    Registry PathSystem\CurrentControlSet\Services\Tcpip\Parameters
    Value NameTcpMaxConnectResponseRetransmissions
    Value TypeREG_DWORD
    Value1
  3. 3 & 6 seconds, half-open connections dropped after 21 seconds
    Registry HiveHKEY_LOCAL_MACHINE
    Registry PathSystem\CurrentControlSet\Services\Tcpip\Parameters
    Value NameTcpMaxConnectResponseRetransmissions
    Value TypeREG_DWORD
    Value2
  4. 3, 6, & 9 seconds, half-open connections dropped after 45 seconds
    Registry HiveHKEY_LOCAL_MACHINE
    Registry PathSystem\CurrentControlSet\Services\Tcpip\Parameters
    Value NameTcpMaxConnectResponseRetransmissions
    Value TypeREG_DWORD
    Value3


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