Secure authentication requirements imcompatible, internal code 12

Hello ,
Firstly, I used self signed cerfiticate, it's ok. But after switch to CA cetificate not signed by Odette,it failed. I have imported all certificates signed by the Odette and used optional - TLS protocol. What's probable cause? Thanks.

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OFTP2

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sunnyzhang,

the secure authentication settings (y/n) could not be negotiated at session start - both partner have to use the same value there else the session is closed with this error code.

Please also have a look at https://tools.ietf.org/html/rfc5024

5.3.11. ESID - End Session
'12' Secure authentication requirements incompatible

and

5.3.2. SSID - Start Session

o-------------------------------------------------------------------o
| SSID Start Session |
| |
| Start Session Phase Initiator <---> Responder |
|-------------------------------------------------------------------|
| Pos | Field | Description | Format |
|-----+-----------+---------------------------------------+---------|
| 0 | SSIDCMD | SSID Command 'X' | F X(1) |
| 1 | SSIDLEV | Protocol Release Level | F 9(1) |
| 2 | SSIDCODE | Initiator's Identification Code | V X(25) |
| 27 | SSIDPSWD | Initiator's Password | V X(8) |
| 35 | SSIDSDEB | Data Exchange Buffer Size | V 9(5) |
| 40 | SSIDSR | Send / Receive Capabilities (S/R/B) | F X(1) |
| 41 | SSIDCMPR | Buffer Compression Indicator (Y/N) | F X(1) |
| 42 | SSIDREST | Restart Indicator (Y/N) | F X(1) |
| 43 | SSIDSPEC | Special Logic Indicator (Y/N) | F X(1) |
| 44 | SSIDCRED | Credit | V 9(3) |
| 47 | SSIDAUTH | Secure Authentication (Y/N) | F X(1) |
| 48 | SSIDRSV1 | Reserved | F X(4) |
| 52 | SSIDUSER | User Data | V X(8) |
| 60 | SSIDCR | Carriage Return | F X(1) |
o-------------------------------------------------------------------o

Regards