Self Service Portal - SSL Handshake Error on login

After configured SSP to access active directory using ssl, I get this error. I test the connection on ssp configuration wizard after selecting ssl option and it was successfull.

where should I import the certificate to pass this error? and how can I get certificate from active directory ?

Cannot connect to LDAP server – javax.naming.CommunicationException: simple bind failed: aaaaaa.bbbbb.ccc:636 [Root exception is javax.net.ssl.SSLHandshakeException: com.ibm.jsse2.util.j: PKIX path building failed: java.security.cert.CertPathBuilderException: PKIXCertPathBuilderImpl could not build a valid CertPath.; internal cause is: java.security.cert.CertPathValidatorException: The certificate issued by CN=XXXX-ROOT-CA, DC=YYYYY, DC=ZZZZ is not trusted; internal cause is: java.security.cert.CertPathValidatorException: Certificate chaining error]

I am getting this same error. Did you ever get a solution to this issue?

the error is about certificate of Active Directory.
I passed this error by disabling SSL during SSP LDAP configuration.