After 3 way handshake complete of TCP connection, TLS connection was not initiated. Client Hello was not available in wireshark or no failure.
Success case:
[Client][TCP][SYN] -> [Server][TCP][SYN, ACK] -> [Client][TCP][ACK] -> [Client][TLS][Client Hello] -> TLS established
Fail case 1: In case of fail case always started with Encrypted Alert
Client IP 49347 Server IP 5080 TLSv1.2 91 Encrypted Alert
-->> Unknown Encrypted Alert generated. Transport Layer Security TLSv1.2 Record Layer: Encrypted Alert Content Type: Alert (21) Version: TLS 1.2 (0x0303) Length: 26 Alert Message: Encrypted Alert
Client IP 49347 Server IP 5080 TCP 60 49347 → 5080 [FIN, ACK] Seq=1651544 Ack=583068 Win=65535 Len=0
Server IP 5080 Client IP 49347 TCP 60 5080 → 49347 [ACK] Seq=583068 Ack=1651544 Win=65535 Len=0
Server IP 5080 Client IP 49347 TCP 60 5080 → 49347 [FIN, ACK] Seq=583068 Ack=1651544 Win=65535 Len=0
Server IP 5080 Client IP 49347 TCP 60 5080 → 49347 [ACK] Seq=583069 Ack=1651545 Win=65535 Len=0
Client IP 49347 Server IP 5080 TCP 60 [TCP Retransmission] 49347 → 5080 [FIN, ACK] Seq=1651544 Ack=583069 Win=65535 Len=0
Server IP 5080 Client IP 49347 TCP 60 [TCP Dup ACK 292970#1] 5080 → 49347 [ACK] Seq=583069 Ack=1651545 Win=65535 Len=0
Client IP 50201 Server IP 5080 TCP 84 50201 → 5080 [SYN, ECN, CWR] Seq=0 Win=65535 Len=0 MSS=1340 WS=64 TSval=1315484363 TSecr=0 SACK_PERM=1
Server IP 5080 Client IP 50201 TCP 68 5080 → 50201 [SYN, ACK, ECN] Seq=0 Ack=1 Win=21440 Len=0 MSS=1440 SACK_PERM=1
Client IP 50201 Server IP 5080 TCP 60 50201 → 5080 [ACK] Seq=1 Ack=1 Win=65535 Len=0
--->>> Client is not sending client hello to setup TLS connection.
Server IP 5080 Client IP 50201 TCP 60 5080 → 50201 [RST, ACK] Seq=1 Ack=1 Win=0 Len=0
Fail case 2: In case of fail case always started with Encrypted Alert
Client IP 50493 Server IP 5080 TLSv1.2 91 Encrypted Alert
-->> Unknown Encrypted Alert generated. Transport Layer Security TLSv1.2 Record Layer: Encrypted Alert Content Type: Alert (21) Version: TLS 1.2 (0x0303) Length: 26 Alert Message: Encrypted Alert
Client IP 50493 Server IP 5080 TCP 60 50493 → 5080 [FIN, ACK] Seq=39328 Ack=38304 Win=65535 Len=0
Server IP 5080 Client IP 50493 TCP 60 5080 → 50493 [ACK] Seq=38304 Ack=39328 Win=59839 Len=0
Server IP 5080 Client IP 50493 TCP 60 5080 → 50493 [FIN, ACK] Seq=38304 Ack=39328 Win=59839 Len=0
Server IP 5080 Client IP 50493 TCP 60 5080 → 50493 [ACK] Seq=38305 Ack=39329 Win=59839 Len=0
Client IP 50493 Server IP 5080 TCP 60 [TCP Retransmission] 50493 → 5080 [FIN, ACK] Seq=39328 Ack=38305 Win=65535 Len=0
Server IP 5080 Client IP 50493 TCP 60 [TCP Dup ACK 183#1] 5080 → 50493 [ACK] Seq=38305 Ack=39329 Win=59839 Len=0
Client IP 50495 Server IP 5080 TCP 84 50495 → 5080 [SYN] Seq=0 Win=65535 Len=0 MSS=1282 WS=64 TSval=222259839 TSecr=0 SACK_PERM=1
Server IP 5080 Client IP 50495 TCP 68 5080 → 50495 [SYN, ACK] Seq=0 Ack=1 Win=20512 Len=0 MSS=1440 SACK_PERM=1
Client IP 50495 Server IP 5080 TCP 60 50495 → 5080 [ACK] Seq=1 Ack=1 Win=65535 Len=0
--->>> Client is not sending client hello to setup TLS connection.
Server IP 5080 Client IP 50495 TCP 60 5080 → 50495 [RST, ACK] Seq=1 Ack=1 Win=0 Len=0