Hi. I’ve just upgraded from Spark 2.7.7 to 2.8 and logging onto the Openfire server doesn’t work. If I downgrade back to 2.7.7 it works again.
We have Openfire on a Windows Server with AD integration (no SSO though).
I found this in the warn.log on the client PC:
WARNING: Exception in Login:
org.jivesoftware.smack.SmackException: java.security.cert.CertificateException: Hostname verification of certificate failed. Certificate does not authenticate…