dtls.SSL - failed in unknown state

[Naresh_R_1]

Dear Team,

we are using MCU 4.3 version Centos deployment when we are trying to login from safari IOS Browser mixed stream not working and getting below error in webrtc agent. kindly suggest to fix the issue

2020-05-01 11:38:47,033  - WARN: dtls.SSL - failed in unknown state

2020-05-01 11:38:47,033  - ERROR: dtls.DtlsSocket - SSL error 1

2020-05-01 11:38:47,033  - WARN: dtls.DtlsSocketContext - DTLS Handshake Failure error:1410242E:SSL routines:dtls1_read_bytes:tlsv1 alert protocol version

2020-05-01 11:38:47,033  - WARN: DtlsTransport - id: 593208706624884700,  message: Handshake failed, transportName:video, openSSLerror: error:1410242E:SSL routines:dtls1_read_bytes:tlsv1 alert protocol version

2020-05-01 11:38:47,033  - ERROR: WebRtcConnection - id: 593208706624884700,  message: Transport Failed, transportType: video

2020-05-01 11:38:47.033  - WARN: Connection - message: failed the ICE process, code: 502, id: 593208706624884700

2020-05-01 11:38:47.034  - WARN: WrtcConnection - ICE failed,  500 593208706624884700

2020-05-01 11:38:47,368  - WARN: dtls.SSL - failed in unknown state

2020-05-01 11:38:47,368  - ERROR: dtls.DtlsSocket - SSL error 1

2020-05-01 11:38:47,368  - WARN: dtls.DtlsSocketContext - DTLS Handshake Failure error:1410242E:SSL routines:dtls1_read_bytes:tlsv1 alert protocol version

2020-05-01 11:38:47,368  - WARN: DtlsTransport - id: 278149146051249730,  message: Handshake failed, transportName:video, openSSLerror: error:1410242E:SSL routines:dtls1_read_bytes:tlsv1 alert protocol version

2020-05-01 11:38:47,368  - ERROR: WebRtcConnection - id: 278149146051249730,  message: Transport Failed, transportType: video

2020-05-01 11:38:47.368  - WARN: Connection - message: failed the ICE process, code: 502, id: 278149146051249730

2020-05-01 11:38:47.368  - WARN: WrtcConnection - ICE failed,  500 278149146051249730

2020-05-01 11:38:47.373  - WARN: WorkingNode - Exiting on SIGTERM

~                                                                                                                                                                                                           

~                                                                       

Thanks

Naresh