3.2.5.3.3 Receiving an SSTP_MSG_CALL_CONNECT_NAK Message
If CurrentState is set to Client_Connect_Request_Sent:
The first time this message is received by the client in response to a particular SSTP_MSG_CALL_CONNECT_REQUEST (section 2.2.9) packet, the client SHOULD retry an implementation-dependent number of times.<10>
If the retry count is not exceeded, the SSTP client MUST:
Resend the SSTP_MSG_CALL_CONNECT_REQUEST (section 2.2.9) message.
Restart the Negotiation timer.
If the retry count is exceeded, the SSTP client MUST:
Change CurrentState to Call_Abort_In_Progress_1.
Send an SSTP_MSG_CALL_ABORT (section 2.2.13) message.
Start the TIMER_VAL_ABORT_STATE_TIMER_1 timer (section 3.1.2.1).
Change CurrentState to Call_Abort_Pending.
Else if CurrentState is set to Call_Abort_Timeout_Pending, Call_Abort_Pending, Call_Disconnect_Ack_Pending, or Call_Disconnect_Timeout_Pending:
Ignore the message.
Else if CurrentState is set to any other value:
Change CurrentState to Call_Abort_In_Progress_1.
Send an SSTP_MSG_CALL_ABORT (section 2.2.13) message.
Start the TIMER_VAL_ABORT_STATE_TIMER_1 timer (section 3.1.2.1).
Change CurrentState to Call_Abort_Pending.