Maybe the AD server only supports SSL/TLS protocol versions that the nav server does not like because of security issues (SSL2/3 or possible even TLS1.0). Or the AD server requires TLS1.2 and the nav server does not handle this? > It could also be related to which cipher suits are supported by the different ends.
Best regards Sigmund Augdal
But you said you are using a Windows AD server for LDAP also? What version? We use a mix of 2012R2 and 2016 here, I have tried both, but with the same result.
Roger